29 files changed, 1355 insertions, 517 deletions
diff --git a/PCbuild/_freeze_importlib.vcxproj b/PCbuild/_freeze_importlib.vcxproj
index 55197af..e133e02 100644
--- a/PCbuild/_freeze_importlib.vcxproj
+++ b/PCbuild/_freeze_importlib.vcxproj
@@ -167,7 +167,7 @@
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\_freeze_importlib.c" />
+    <ClCompile Include="..\Programs\_freeze_importlib.c" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="pythoncore.vcxproj">
@@ -185,4 +185,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
-\ No newline at end of file
+</Project>
diff --git a/PCbuild/_freeze_importlib.vcxproj.filters b/PCbuild/_freeze_importlib.vcxproj.filters
index 50ec193..ccad053 100644
--- a/PCbuild/_freeze_importlib.vcxproj.filters
+++ b/PCbuild/_freeze_importlib.vcxproj.filters
@@ -15,7 +15,7 @@
     </Filter>
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\_freeze_importlib.c">
+    <ClCompile Include="..\Programs\_freeze_importlib.c">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
@@ -24,4 +24,4 @@
       <Filter>Source Files</Filter>
     </None>
   </ItemGroup>
-</Project>
-\ No newline at end of file
+</Project>
diff --git a/PCbuild/_testembed.vcxproj b/PCbuild/_testembed.vcxproj
index 83c7ad2..57b7b5c 100644
--- a/PCbuild/_testembed.vcxproj
+++ b/PCbuild/_testembed.vcxproj
@@ -143,7 +143,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\_testembed.c" />
+    <ClCompile Include="..\Programs\_testembed.c" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="pythoncore.vcxproj">
diff --git a/PCbuild/_testembed.vcxproj.filters b/PCbuild/_testembed.vcxproj.filters
index dea54d4..f7f9abe 100644
--- a/PCbuild/_testembed.vcxproj.filters
+++ b/PCbuild/_testembed.vcxproj.filters
@@ -15,7 +15,7 @@
     </Filter>
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\_testembed.c">
+    <ClCompile Include="..\Programs\_testembed.c">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
diff --git a/PCbuild/_tkinter.vcxproj b/PCbuild/_tkinter.vcxproj
index 67f72fe..9218d63 100644
--- a/PCbuild/_tkinter.vcxproj
+++ b/PCbuild/_tkinter.vcxproj
@@ -85,41 +85,49 @@
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="pyd.props" />
     <Import Project="pgupdate.props" />
+    <Import Project="tcltk.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="pyd.props" />
     <Import Project="pginstrument.props" />
+    <Import Project="tcltk.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="pyd.props" />
+    <Import Project="tcltk.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="pyd_d.props" />
+    <Import Project="tcltk.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="pyd.props" />
     <Import Project="x64.props" />
     <Import Project="pgupdate.props" />
+    <Import Project="tcltk.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="pyd.props" />
     <Import Project="x64.props" />
     <Import Project="pginstrument.props" />
+    <Import Project="tcltk.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="pyd.props" />
     <Import Project="x64.props" />
+    <Import Project="tcltk.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="pyd_d.props" />
     <Import Project="x64.props" />
+    <Import Project="tcltk.props" />
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup>
@@ -155,7 +163,7 @@
       <PreprocessorDefinitions>WITH_APPINIT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>$(tcltkLibDebug);%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(tcltkLib);%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -163,11 +171,11 @@
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
     <ClCompile>
-      <AdditionalIncludeDirectories>$(tcltk64Dir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(tcltkDir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WITH_APPINIT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>$(tcltk64LibDebug);%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(tcltkLib);%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -184,11 +192,11 @@
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
     <ClCompile>
-      <AdditionalIncludeDirectories>$(tcltk64Dir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(tcltkDir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WITH_APPINIT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>$(tcltk64Lib);%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(tcltkLib);%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">
@@ -205,11 +213,11 @@
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
     <ClCompile>
-      <AdditionalIncludeDirectories>$(tcltk64Dir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(tcltkDir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WITH_APPINIT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>$(tcltk64Lib);%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(tcltkLib);%(AdditionalDependencies)</AdditionalDependencies>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
   </ItemDefinitionGroup>
@@ -227,11 +235,11 @@
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
     <ClCompile>
-      <AdditionalIncludeDirectories>$(tcltk64Dir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(tcltkDir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WITH_APPINIT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>$(tcltk64Lib);%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(tcltkLib);%(AdditionalDependencies)</AdditionalDependencies>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
   </ItemDefinitionGroup>
@@ -244,6 +252,12 @@
       <Project>{cf7ac3d1-e2df-41d2-bea6-1e2556cdea26}</Project>
       <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
     </ProjectReference>
+    <ProjectReference Include="tcl.vcxproj">
+      <Project>{b5fd6f1d-129e-4bff-9340-03606fac7283}</Project>
+    </ProjectReference>
+    <ProjectReference Include="tk.vcxproj">
+      <Project>{7e85eccf-a72c-4da4-9e52-884508e80ba1}</Project>
+    </ProjectReference>
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/PCbuild/build.bat b/PCbuild/build.bat
index fa0d95b..838f6ef 100644
--- a/PCbuild/build.bat
+++ b/PCbuild/build.bat
@@ -1,19 +1,34 @@
 @echo off
-rem A batch program to build or rebuild a particular configuration.
+rem A batch program to build or rebuild a particular configuration,
 rem just for convenience.
 
+rem Arguments:
+rem  -c  Set the configuration (default: Release)
+rem  -p  Set the platform (x64 or Win32, default: Win32)
+rem  -r  Target Rebuild instead of Build
+rem  -d  Set the configuration to Debug
+rem  -e  Pull in external libraries using get_externals.bat
+
 setlocal
 set platf=Win32
 set conf=Release
-set target=build
+set target=Build
 set dir=%~dp0
 
 :CheckOpts
-if "%1"=="-c" (set conf=%2) & shift & shift & goto CheckOpts
-if "%1"=="-p" (set platf=%2) & shift & shift & goto CheckOpts
-if "%1"=="-r" (set target=rebuild) & shift & goto CheckOpts
-if "%1"=="-d" (set conf=Debug) & shift & goto CheckOpts
+if '%1'=='-c' (set conf=%2) & shift & shift & goto CheckOpts
+if '%1'=='-p' (set platf=%2) & shift & shift & goto CheckOpts
+if '%1'=='-r' (set target=Rebuild) & shift & goto CheckOpts
+if '%1'=='-d' (set conf=Debug) & shift & goto CheckOpts
+if '%1'=='-e' call "%dir%get_externals.bat" & shift & goto CheckOpts
+
+if '%platf%'=='x64' (set vs_platf=x86_amd64)
+
+rem Setup the environment
+call "%VS100COMNTOOLS%..\..\VC\vcvarsall.bat" %vs_platf%
 
-set cmd=msbuild /p:useenv=true %dir%pcbuild.sln /t:%target% /p:Configuration=%conf% /p:Platform=%platf%
-echo %cmd%
-%cmd%
+rem Call on MSBuild to do the work, echo the command.
+rem Passing %1-9 is not the preferred option, but argument parsing in
+rem batch is, shall we say, "lackluster"
+echo on
+msbuild "%dir%pcbuild.sln" /t:%target% /p:Configuration=%conf% /p:Platform=%platf% %1 %2 %3 %4 %5 %6 %7 %8 %9
diff --git a/PCbuild/build_pgo.bat b/PCbuild/build_pgo.bat
index 0c0a473..f513583 100644
--- a/PCbuild/build_pgo.bat
+++ b/PCbuild/build_pgo.bat
@@ -7,14 +7,15 @@ rem building the PGUpdate configuration while developing.
 
 setlocal
 set platf=Win32
+set dir=%~dp0
 
 rem use the performance testsuite.  This is quick and simple
-set job1=..\tools\pybench\pybench.py -n 1 -C 1 --with-gc
-set path1=..\tools\pybench
+set job1="%dir%..\tools\pybench\pybench.py" -n 1 -C 1 --with-gc
+set path1="%dir%..\tools\pybench"
 
 rem or the whole testsuite for more thorough testing
-set job2=..\lib\test\regrtest.py
-set path2=..\lib
+set job2="%dir%..\lib\test\regrtest.py"
+set path2="%dir%..\lib"
 
 set job=%job1%
 set clrpath=%path1%
@@ -23,19 +24,25 @@ set clrpath=%path1%
 if "%1"=="-p" (set platf=%2) & shift & shift & goto CheckOpts
 if "%1"=="-2" (set job=%job2%) & (set clrpath=%path2%) & shift & goto CheckOpts
 
-set PGI=%platf%-pgi
-set PGO=%platf%-pgo
+set PGI=%dir%%platf%-pgi
+set PGO=%dir%%platf%-pgo
+
+rem We cannot cross compile PGO builds, as the optimization needs to be run natively
+set vs_platf=x86
+if "%platf%"=="x64" (set vs_platf=amd64)
+rem Setup the environment
+call "%VS100COMNTOOLS%..\..\VC\vcvarsall.bat" %vs_platf%
 
-@echo on
 rem build the instrumented version
-call build -p %platf% -c PGInstrument
+msbuild "%dir%pcbuild.sln" /t:Build /p:Configuration=PGInstrument /p:Platform=%platf% %1 %2 %3 %4 %5 %6 %7 %8 %9
 
 rem remove .pyc files, .pgc files and execute the job
-%PGI%\python.exe rmpyc.py %clrpath%
-del %PGI%\*.pgc
-%PGI%\python.exe %job%
+"%PGI%\python.exe" "%dir%rmpyc.py" %clrpath%
+del "%PGI%\*.pgc"
+"%PGI%\python.exe" %job%
 
-rem finally build the optimized version
-if exist %PGO% del /s /q %PGO%
-call build -p %platf% -c PGUpdate
+rem clean
+if exist "%PGO%" del /s /q "%PGO%"
 
+rem build optimized version
+msbuild "%dir%pcbuild.sln" /t:Build /p:Configuration=PGUpdate /p:Platform=%platf% %1 %2 %3 %4 %5 %6 %7 %8 %9
diff --git a/PCbuild/build_ssl.py b/PCbuild/build_ssl.py
deleted file mode 100644
index 260cbf3..0000000
--- a/PCbuild/build_ssl.py
+++ /dev/null
@@ -1,253 +0,0 @@
-# Script for building the _ssl and _hashlib modules for Windows.
-# Uses Perl to setup the OpenSSL environment correctly
-# and build OpenSSL, then invokes a simple nmake session
-# for the actual _ssl.pyd and _hashlib.pyd DLLs.
-
-# THEORETICALLY, you can:
-# * Unpack the latest SSL release one level above your main Python source
-#   directory.  It is likely you will already find the zlib library and
-#   any other external packages there.
-# * Install ActivePerl and ensure it is somewhere on your path.
-# * Run this script from the PCBuild directory.
-#
-# it should configure and build SSL, then build the _ssl and _hashlib
-# Python extensions without intervention.
-
-# Modified by Christian Heimes
-# Now this script supports pre-generated makefiles and assembly files.
-# Developers don't need an installation of Perl anymore to build Python. A svn
-# checkout from our svn repository is enough.
-#
-# In Order to create the files in the case of an update you still need Perl.
-# Run build_ssl in this order:
-# python.exe build_ssl.py Release x64
-# python.exe build_ssl.py Release Win32
-
-import os, sys, re, shutil
-import subprocess
-
-# Find all "foo.exe" files on the PATH.
-def find_all_on_path(filename, extras = None):
-    entries = os.environ["PATH"].split(os.pathsep)
-    ret = []
-    for p in entries:
-        fname = os.path.abspath(os.path.join(p, filename))
-        if os.path.isfile(fname) and fname not in ret:
-            ret.append(fname)
-    if extras:
-        for p in extras:
-            fname = os.path.abspath(os.path.join(p, filename))
-            if os.path.isfile(fname) and fname not in ret:
-                ret.append(fname)
-    return ret
-
-# Find a suitable Perl installation for OpenSSL.
-# cygwin perl does *not* work.  ActivePerl does.
-# Being a Perl dummy, the simplest way I can check is if the "Win32" package
-# is available.
-def find_working_perl(perls):
-    for perl in perls:
-        try:
-            subprocess.check_output([perl, "-e", "use Win32;"])
-        except subprocess.CalledProcessError:
-            continue
-        else:
-            return perl
-
-    if perls:
-        print("The following perl interpreters were found:")
-        for p in perls:
-            print(" ", p)
-        print(" None of these versions appear suitable for building OpenSSL")
-    else:
-        print("NO perl interpreters were found on this machine at all!")
-    print(" Please install ActivePerl and ensure it appears on your path")
-
-# Fetch SSL directory from VC properties
-def get_ssl_dir():
-    propfile = (os.path.join(os.path.dirname(__file__), 'pyproject.props'))
-    with open(propfile, encoding='utf-8-sig') as f:
-        m = re.search('openssl-([^<]+)<', f.read())
-        return "..\..\openssl-"+m.group(1)
-
-
-def create_makefile64(makefile, m32):
-    """Create and fix makefile for 64bit
-
-    Replace 32 with 64bit directories
-    """
-    if not os.path.isfile(m32):
-        return
-    with open(m32) as fin:
-        with open(makefile, 'w') as fout:
-            for line in fin:
-                line = line.replace("=tmp32", "=tmp64")
-                line = line.replace("=out32", "=out64")
-                line = line.replace("=inc32", "=inc64")
-                # force 64 bit machine
-                line = line.replace("MKLIB=lib", "MKLIB=lib /MACHINE:X64")
-                line = line.replace("LFLAGS=", "LFLAGS=/MACHINE:X64 ")
-                # don't link against the lib on 64bit systems
-                line = line.replace("bufferoverflowu.lib", "")
-                fout.write(line)
-    os.unlink(m32)
-
-def fix_makefile(makefile):
-    """Fix some stuff in all makefiles
-    """
-    if not os.path.isfile(makefile):
-        return
-    with open(makefile) as fin:
-        lines = fin.readlines()
-    with open(makefile, 'w') as fout:
-        for line in lines:
-            if line.startswith("PERL="):
-                continue
-            if line.startswith("CP="):
-                line = "CP=copy\n"
-            if line.startswith("MKDIR="):
-                line = "MKDIR=mkdir\n"
-            if line.startswith("CFLAG="):
-                line = line.strip()
-                for algo in ("RC5", "MDC2", "IDEA"):
-                    noalgo = " -DOPENSSL_NO_%s" % algo
-                    if noalgo not in line:
-                        line = line + noalgo
-                line = line + '\n'
-            fout.write(line)
-
-def run_configure(configure, do_script):
-    print("perl Configure "+configure+" no-idea no-mdc2")
-    os.system("perl Configure "+configure+" no-idea no-mdc2")
-    print(do_script)
-    os.system(do_script)
-
-def cmp(f1, f2):
-    bufsize = 1024 * 8
-    with open(f1, 'rb') as fp1, open(f2, 'rb') as fp2:
-        while True:
-            b1 = fp1.read(bufsize)
-            b2 = fp2.read(bufsize)
-            if b1 != b2:
-                return False
-            if not b1:
-                return True
-
-def copy(src, dst):
-    if os.path.isfile(dst) and cmp(src, dst):
-        return
-    shutil.copy(src, dst)
-
-def main():
-    build_all = "-a" in sys.argv
-    if sys.argv[1] == "Release":
-        debug = False
-    elif sys.argv[1] == "Debug":
-        debug = True
-    else:
-        raise ValueError(str(sys.argv))
-
-    if sys.argv[2] == "Win32":
-        arch = "x86"
-        configure = "VC-WIN32"
-        do_script = "ms\\do_nasm"
-        makefile="ms\\nt.mak"
-        m32 = makefile
-        dirsuffix = "32"
-    elif sys.argv[2] == "x64":
-        arch="amd64"
-        configure = "VC-WIN64A"
-        do_script = "ms\\do_win64a"
-        makefile = "ms\\nt64.mak"
-        m32 = makefile.replace('64', '')
-        dirsuffix = "64"
-        #os.environ["VSEXTCOMP_USECL"] = "MS_OPTERON"
-    else:
-        raise ValueError(str(sys.argv))
-
-    make_flags = ""
-    if build_all:
-        make_flags = "-a"
-    # perl should be on the path, but we also look in "\perl" and "c:\\perl"
-    # as "well known" locations
-    perls = find_all_on_path("perl.exe", ["\\perl\\bin", "C:\\perl\\bin"])
-    perl = find_working_perl(perls)
-    if perl:
-        print("Found a working perl at '%s'" % (perl,))
-    else:
-        print("No Perl installation was found. Existing Makefiles are used.")
-    sys.stdout.flush()
-    # Look for SSL 2 levels up from pcbuild - ie, same place zlib etc all live.
-    ssl_dir = get_ssl_dir()
-    if ssl_dir is None:
-        sys.exit(1)
-
-    old_cd = os.getcwd()
-    try:
-        os.chdir(ssl_dir)
-        # rebuild makefile when we do the role over from 32 to 64 build
-        if arch == "amd64" and os.path.isfile(m32) and not os.path.isfile(makefile):
-            os.unlink(m32)
-
-        # If the ssl makefiles do not exist, we invoke Perl to generate them.
-        # Due to a bug in this script, the makefile sometimes ended up empty
-        # Force a regeneration if it is.
-        if not os.path.isfile(makefile) or os.path.getsize(makefile)==0:
-            if perl is None:
-                print("Perl is required to build the makefiles!")
-                sys.exit(1)
-
-            print("Creating the makefiles...")
-            sys.stdout.flush()
-            # Put our working Perl at the front of our path
-            os.environ["PATH"] = os.path.dirname(perl) + \
-                                          os.pathsep + \
-                                          os.environ["PATH"]
-            run_configure(configure, do_script)
-            if debug:
-                print("OpenSSL debug builds aren't supported.")
-            #if arch=="x86" and debug:
-            #    # the do_masm script in openssl doesn't generate a debug
-            #    # build makefile so we generate it here:
-            #    os.system("perl util\mk1mf.pl debug "+configure+" >"+makefile)
-
-            if arch == "amd64":
-                create_makefile64(makefile, m32)
-            fix_makefile(makefile)
-            copy(r"crypto\buildinf.h", r"crypto\buildinf_%s.h" % arch)
-            copy(r"crypto\opensslconf.h", r"crypto\opensslconf_%s.h" % arch)
-
-        # If the assembler files don't exist in tmpXX, copy them there
-        if perl is None and os.path.exists("asm"+dirsuffix):
-            if not os.path.exists("tmp"+dirsuffix):
-                os.mkdir("tmp"+dirsuffix)
-            for f in os.listdir("asm"+dirsuffix):
-                if not f.endswith(".asm"): continue
-                if os.path.isfile(r"tmp%s\%s" % (dirsuffix, f)): continue
-                shutil.copy(r"asm%s\%s" % (dirsuffix, f), "tmp"+dirsuffix)
-
-        # Now run make.
-        if arch == "amd64":
-            rc = os.system("nasm -f win64 -DNEAR -Ox -g ms\\uptable.asm")
-            if rc:
-                print("nasm assembler has failed.")
-                sys.exit(rc)
-
-        copy(r"crypto\buildinf_%s.h" % arch, r"crypto\buildinf.h")
-        copy(r"crypto\opensslconf_%s.h" % arch, r"crypto\opensslconf.h")
-
-        #makeCommand = "nmake /nologo PERL=\"%s\" -f \"%s\"" %(perl, makefile)
-        makeCommand = "nmake /nologo -f \"%s\"" % makefile
-        print("Executing ssl makefiles:", makeCommand)
-        sys.stdout.flush()
-        rc = os.system(makeCommand)
-        if rc:
-            print("Executing "+makefile+" failed")
-            print(rc)
-            sys.exit(rc)
-    finally:
-        os.chdir(old_cd)
-    sys.exit(rc)
-
-if __name__=='__main__':
-    main()
diff --git a/PCbuild/build_tkinter.py b/PCbuild/build_tkinter.py
deleted file mode 100644
index c807e7b..0000000
--- a/PCbuild/build_tkinter.py
+++ /dev/null
@@ -1,78 +0,0 @@
-"""Script to compile the dependencies of _tkinter
-
-Copyright (c) 2007 by Christian Heimes <christian@cheimes.de>
-
-Licensed to PSF under a Contributor Agreement.
-"""
-
-import os
-import sys
-
-here = os.path.abspath(os.path.dirname(__file__))
-par = os.path.pardir
-
-TCL = "tcl8.6.1"
-TK = "tk8.6.1"
-TIX = "tix-8.4.3.3"
-
-ROOT = os.path.abspath(os.path.join(here, par, par))
-NMAKE = ('nmake /nologo /f %s %s %s')
-
-def nmake(makefile, command="", **kw):
-    defines = ' '.join(k+'='+str(v) for k, v in kw.items())
-    cmd = NMAKE % (makefile, defines, command)
-    print("\n\n"+cmd+"\n")
-    if os.system(cmd) != 0:
-        raise RuntimeError(cmd)
-
-def build(platform, clean):
-    if platform == "Win32":
-        dest = os.path.join(ROOT, "tcltk")
-        machine = "IX86"
-    elif platform == "AMD64":
-        dest = os.path.join(ROOT, "tcltk64")
-        machine = "AMD64"
-    else:
-        raise ValueError(platform)
-
-    # TCL
-    tcldir = os.path.join(ROOT, TCL)
-    if 1:
-        os.chdir(os.path.join(tcldir, "win"))
-        if clean:
-            nmake("makefile.vc", "clean")
-        nmake("makefile.vc", MACHINE=machine)
-        nmake("makefile.vc", "install", INSTALLDIR=dest, MACHINE=machine)
-
-    # TK
-    if 1:
-        os.chdir(os.path.join(ROOT, TK, "win"))
-        if clean:
-            nmake("makefile.vc", "clean", DEBUG=0, TCLDIR=tcldir)
-        nmake("makefile.vc", DEBUG=0, MACHINE=machine, TCLDIR=tcldir)
-        nmake("makefile.vc", "install", DEBUG=0, INSTALLDIR=dest, MACHINE=machine, TCLDIR=tcldir)
-
-    # TIX
-    if 1:
-        # python9.mak is available at http://svn.python.org
-        os.chdir(os.path.join(ROOT, TIX, "win"))
-        if clean:
-            nmake("python.mak", "clean")
-        nmake("python.mak", MACHINE=machine, INSTALL_DIR=dest)
-        nmake("python.mak", "install", MACHINE=machine, INSTALL_DIR=dest)
-
-def main():
-    if len(sys.argv) < 2 or sys.argv[1] not in ("Win32", "AMD64"):
-        print("%s Win32|AMD64" % sys.argv[0])
-        sys.exit(1)
-
-    if "-c" in sys.argv:
-        clean = True
-    else:
-        clean = False
-
-    build(sys.argv[1], clean)
-
-
-if __name__ == '__main__':
-    main()
diff --git a/PCbuild/debug.props b/PCbuild/debug.props
index 9b7a65a..54f3c32 100644
--- a/PCbuild/debug.props
+++ b/PCbuild/debug.props
@@ -3,6 +3,7 @@
   <PropertyGroup Label="UserMacros">
     <PyDebugExt>_d</PyDebugExt>
     <KillPythonExe>$(OutDir)kill_python_d.exe</KillPythonExe>
+    <TclDebugExt>g</TclDebugExt>
   </PropertyGroup>
   <PropertyGroup>
     <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
@@ -23,5 +24,8 @@
     <BuildMacro Include="KillPythonExe">
       <Value>$(KillPythonExe)</Value>
     </BuildMacro>
+    <BuildMacro Include="TclDebugExt">
+      <Value>$(TclDebugExt)</Value>
+    </BuildMacro>
   </ItemGroup>
 </Project>
 \ No newline at end of file
diff --git a/PCbuild/env.bat b/PCbuild/env.bat
index 08dc8ef..f0268a9 100644
--- a/PCbuild/env.bat
+++ b/PCbuild/env.bat
@@ -1,9 +1,5 @@
 @echo off
-set VS10=%ProgramFiles(x86)%\Microsoft Visual Studio 10.0
-IF EXIST "%VS10%" GOTO ok
-set VS10=%ProgramFiles%\Microsoft Visual Studio 10.0
-:ok
 
 echo Build environments: x86, ia64, amd64, x86_amd64, x86_ia64
 echo.
-call "%VS10%\VC\vcvarsall.bat" %1
+call "%VS100COMNTOOLS%..\..\VC\vcvarsall.bat" %1
diff --git a/PCbuild/get_externals.bat b/PCbuild/get_externals.bat
new file mode 100644
index 0000000..783df5c
--- /dev/null
+++ b/PCbuild/get_externals.bat
@@ -0,0 +1,100 @@
+@echo off
+setlocal
+rem Simple script to fetch source for external libraries
+
+pushd "%~dp0..\.."
+
+if "%SVNROOT%"=="" set SVNROOT=http://svn.python.org/projects/external/
+
+rem Optionally clean up first.  Be warned that this can be very destructive!
+if not "%1"=="" (
+    for %%c in (-c --clean --clean-only) do (
+        if "%1"=="%%c" goto clean
+    )
+    goto usage
+)
+goto fetch
+
+:clean
+echo.Cleaning up external libraries.
+for /D %%d in (
+               bzip2-*
+               db-*
+               openssl-*
+               tcl-*
+               tcltk*
+               tk-*
+               tix-*
+               sqlite-*
+               xz-*
+               ) do (
+    echo.Removing %%d
+    rmdir /s /q %%d
+)
+if "%1"=="--clean-only" (
+    goto end
+)
+
+:fetch
+rem Fetch current versions
+
+svn --version > nul 2>&1
+if ERRORLEVEL 9009 (
+    echo.svn.exe must be on your PATH.
+    echo.Try TortoiseSVN (http://tortoisesvn.net/^) and be sure to check the
+    echo.command line tools option.
+    popd
+    exit /b 1
+)
+
+echo.Fetching external libraries...
+
+for %%e in (
+            bzip2-1.0.6
+            openssl-1.0.1i
+            tcl-8.6.1.0
+            tk-8.6.1.0
+            tix-8.4.3.4
+            sqlite-3.8.3.1
+            xz-5.0.5
+            ) do (
+    if exist %%e (
+        echo.%%e already exists, skipping.
+    ) else (
+        echo.Fetching %%e...
+        svn export %SVNROOT%%%e
+    )
+)
+
+goto end
+
+:usage
+echo.invalid argument: %1
+echo.usage: %~n0 [[ -c ^| --clean ] ^| --clean-only ]
+echo.
+echo.Pull all sources necessary for compiling optional extension modules
+echo.that rely on external libraries.  Requires svn.exe to be on your PATH
+echo.and pulls sources from %SVNROOT%.
+echo.
+echo.Use the -c or --clean option to clean up all external library sources
+echo.before pulling in the current versions.
+echo.
+echo.Use the --clean-only option to do the same cleaning, without pulling in
+echo.anything new.
+echo.
+echo.Only the first argument is checked, all others are ignored.
+echo.
+echo.**WARNING**: the cleaning options unconditionally remove any directory
+echo.that is a child of
+echo.   %CD%
+echo.and matches wildcard patterns beginning with bzip2-, db-, openssl-, tcl-,
+echo.tcltk, tk-, tix-, sqlite-, or xz-, and as such has the potential to be
+echo.very destructive if you are not aware of what it is doing.  Use with
+echo.caution!
+popd
+exit /b -1
+
+
+:end
+echo Finished.
+popd
diff --git a/PCbuild/kill_python.c b/PCbuild/kill_python.c
index 604731f..dbc9425 100644
--- a/PCbuild/kill_python.c
+++ b/PCbuild/kill_python.c
@@ -62,7 +62,7 @@ main(int argc, char **argv)
             continue;
 
         len = wcsnlen_s(me.szExePath, MAX_PATH) - KILL_PYTHON_EXE_LEN;
-        wcsncpy_s(path, MAX_PATH+1, me.szExePath, len); 
+        wcsncpy_s(path, MAX_PATH+1, me.szExePath, len);
 
         break;
 
@@ -80,8 +80,8 @@ main(int argc, char **argv)
      * looking for python processes.  When we find one, verify it lives
      * in the same directory we live in.  If it does, kill it.  If we're
      * unable to kill it, treat this as a fatal error and return 1.
-     * 
-     * The rationale behind this is that we're called at the start of the 
+     *
+     * The rationale behind this is that we're called at the start of the
      * build process on the basis that we'll take care of killing any
      * running instances, such that the build won't encounter permission
      * denied errors during linking. If we can't kill one of the processes,
@@ -104,11 +104,11 @@ main(int argc, char **argv)
     do {
 
         /*
-         * XXX TODO: if we really wanted to be fancy, we could check the 
+         * XXX TODO: if we really wanted to be fancy, we could check the
          * modules for all processes (not just the python[_d].exe ones)
-         * and see if any of our DLLs are loaded (i.e. python34[_d].dll),
+         * and see if any of our DLLs are loaded (i.e. python35[_d].dll),
          * as that would also inhibit our ability to rebuild the solution.
-         * Not worth loosing sleep over though; for now, a simple check 
+         * Not worth loosing sleep over though; for now, a simple check
          * for just the python executable should be sufficient.
          */
 
@@ -119,7 +119,7 @@ main(int argc, char **argv)
         /* It's a python process, so figure out which directory it's in... */
         hsm = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pe.th32ProcessID);
         if (hsm == INVALID_HANDLE_VALUE)
-            /* 
+            /*
              * If our module snapshot fails (which will happen if we don't own
              * the process), just ignore it and continue.  (It seems different
              * versions of Windows return different values for GetLastError()
diff --git a/PCbuild/pcbuild.sln b/PCbuild/pcbuild.sln
index a346e10..2c3127b 100644
--- a/PCbuild/pcbuild.sln
+++ b/PCbuild/pcbuild.sln
@@ -78,6 +78,12 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_overlapped", "_overlapped.
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_testembed", "_testembed.vcxproj", "{6DAC66D9-E703-4624-BE03-49112AB5AA62}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "tcl", "tcl.vcxproj", "{B5FD6F1D-129E-4BFF-9340-03606FAC7283}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "tk", "tk.vcxproj", "{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "tix", "tix.vcxproj", "{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Win32 = Debug|Win32
@@ -645,6 +651,54 @@ Global
 		{6DAC66D9-E703-4624-BE03-49112AB5AA62}.Release|Win32.Build.0 = Release|Win32
 		{6DAC66D9-E703-4624-BE03-49112AB5AA62}.Release|x64.ActiveCfg = Release|x64
 		{6DAC66D9-E703-4624-BE03-49112AB5AA62}.Release|x64.Build.0 = Release|x64
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.Debug|Win32.ActiveCfg = Debug|Win32
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.Debug|Win32.Build.0 = Debug|Win32
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.Debug|x64.ActiveCfg = Debug|x64
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.Debug|x64.Build.0 = Debug|x64
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.PGInstrument|Win32.ActiveCfg = Release|Win32
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.PGInstrument|Win32.Build.0 = Release|Win32
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.PGInstrument|x64.ActiveCfg = PGInstrument|x64
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.PGInstrument|x64.Build.0 = PGInstrument|x64
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.PGUpdate|Win32.ActiveCfg = Release|Win32
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.PGUpdate|Win32.Build.0 = Release|Win32
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.PGUpdate|x64.ActiveCfg = PGUpdate|x64
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.PGUpdate|x64.Build.0 = PGUpdate|x64
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.Release|Win32.ActiveCfg = Release|Win32
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.Release|Win32.Build.0 = Release|Win32
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.Release|x64.ActiveCfg = Release|x64
+		{B5FD6F1D-129E-4BFF-9340-03606FAC7283}.Release|x64.Build.0 = Release|x64
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.Debug|Win32.ActiveCfg = Debug|Win32
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.Debug|Win32.Build.0 = Debug|Win32
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.Debug|x64.ActiveCfg = Debug|x64
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.Debug|x64.Build.0 = Debug|x64
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.PGInstrument|Win32.ActiveCfg = Release|Win32
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.PGInstrument|Win32.Build.0 = Release|Win32
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.PGInstrument|x64.ActiveCfg = PGInstrument|x64
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.PGInstrument|x64.Build.0 = PGInstrument|x64
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.PGUpdate|Win32.ActiveCfg = Release|Win32
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.PGUpdate|Win32.Build.0 = Release|Win32
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.PGUpdate|x64.ActiveCfg = PGUpdate|x64
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.PGUpdate|x64.Build.0 = PGUpdate|x64
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.Release|Win32.ActiveCfg = Release|Win32
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.Release|Win32.Build.0 = Release|Win32
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.Release|x64.ActiveCfg = Release|x64
+		{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}.Release|x64.Build.0 = Release|x64
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.Debug|Win32.Build.0 = Debug|Win32
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.Debug|x64.ActiveCfg = Debug|x64
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.Debug|x64.Build.0 = Debug|x64
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.PGInstrument|Win32.ActiveCfg = PGInstrument|Win32
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.PGInstrument|Win32.Build.0 = PGInstrument|Win32
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.PGInstrument|x64.ActiveCfg = PGInstrument|x64
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.PGInstrument|x64.Build.0 = PGInstrument|x64
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.PGUpdate|Win32.ActiveCfg = PGUpdate|Win32
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.PGUpdate|Win32.Build.0 = PGUpdate|Win32
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.PGUpdate|x64.ActiveCfg = PGUpdate|x64
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.PGUpdate|x64.Build.0 = PGUpdate|x64
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.Release|Win32.ActiveCfg = Release|Win32
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.Release|Win32.Build.0 = Release|Win32
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.Release|x64.ActiveCfg = Release|x64
+		{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}.Release|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/PCbuild/pginstrument.props b/PCbuild/pginstrument.props
index 5584995..22fac2e 100644
--- a/PCbuild/pginstrument.props
+++ b/PCbuild/pginstrument.props
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="UserMacros">
-    <OutDirPGI>$(SolutionDir)$(Platform)-pgi\</OutDirPGI>
+    <OutDirPGI>$(SolutionDir)$(Platform)-pgi</OutDirPGI>
   </PropertyGroup>
   <PropertyGroup>
     <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
diff --git a/PCbuild/build_ssl.bat b/PCbuild/prepare_ssl.bat
index 805d77a..cb06500 100644
--- a/PCbuild/build_ssl.bat
+++ b/PCbuild/prepare_ssl.bat
@@ -1,12 +1,12 @@
 @echo off
 if not defined HOST_PYTHON (
   if %1 EQU Debug (
+    shift
     set HOST_PYTHON=python_d.exe
-    if not exist python34_d.dll exit 1
+    if not exist python35_d.dll exit 1
   ) ELSE (
     set HOST_PYTHON=python.exe
-    if not exist python34.dll exit 1
+    if not exist python35.dll exit 1
   )
 )
-%HOST_PYTHON% build_ssl.py %1 %2 %3
-
+%HOST_PYTHON% prepare_ssl.py %1
diff --git a/PCbuild/prepare_ssl.py b/PCbuild/prepare_ssl.py
new file mode 100644
index 0000000..199c4ef
--- /dev/null
+++ b/PCbuild/prepare_ssl.py
@@ -0,0 +1,240 @@
+# Script for preparing OpenSSL for building on Windows.
+# Uses Perl to create nmake makefiles and otherwise prepare the way
+# for building on 32 or 64 bit platforms.
+
+# Script originally authored by Mark Hammond.
+# Major revisions by:
+#   Martin v. Löwis
+#   Christian Heimes
+#   Zachary Ware
+
+# THEORETICALLY, you can:
+# * Unpack the latest OpenSSL release where $(opensslDir) in
+#   PCbuild\pyproject.props expects it to be.
+# * Install ActivePerl and ensure it is somewhere on your path.
+# * Run this script with the OpenSSL source dir as the only argument.
+#
+# it should configure OpenSSL such that it is ready to be built by
+# ssl.vcxproj on 32 or 64 bit platforms.
+
+import os
+import re
+import sys
+import shutil
+import subprocess
+
+# Find all "foo.exe" files on the PATH.
+def find_all_on_path(filename, extras = None):
+    entries = os.environ["PATH"].split(os.pathsep)
+    ret = []
+    for p in entries:
+        fname = os.path.abspath(os.path.join(p, filename))
+        if os.path.isfile(fname) and fname not in ret:
+            ret.append(fname)
+    if extras:
+        for p in extras:
+            fname = os.path.abspath(os.path.join(p, filename))
+            if os.path.isfile(fname) and fname not in ret:
+                ret.append(fname)
+    return ret
+
+# Find a suitable Perl installation for OpenSSL.
+# cygwin perl does *not* work.  ActivePerl does.
+# Being a Perl dummy, the simplest way I can check is if the "Win32" package
+# is available.
+def find_working_perl(perls):
+    for perl in perls:
+        try:
+            subprocess.check_output([perl, "-e", "use Win32;"])
+        except subprocess.CalledProcessError:
+            continue
+        else:
+            return perl
+
+    if perls:
+        print("The following perl interpreters were found:")
+        for p in perls:
+            print(" ", p)
+        print(" None of these versions appear suitable for building OpenSSL")
+    else:
+        print("NO perl interpreters were found on this machine at all!")
+    print(" Please install ActivePerl and ensure it appears on your path")
+
+def create_makefile64(makefile, m32):
+    """Create and fix makefile for 64bit
+
+    Replace 32 with 64bit directories
+    """
+    if not os.path.isfile(m32):
+        return
+    with open(m32) as fin:
+        with open(makefile, 'w') as fout:
+            for line in fin:
+                line = line.replace("=tmp32", "=tmp64")
+                line = line.replace("=out32", "=out64")
+                line = line.replace("=inc32", "=inc64")
+                # force 64 bit machine
+                line = line.replace("MKLIB=lib", "MKLIB=lib /MACHINE:X64")
+                line = line.replace("LFLAGS=", "LFLAGS=/MACHINE:X64 ")
+                # don't link against the lib on 64bit systems
+                line = line.replace("bufferoverflowu.lib", "")
+                fout.write(line)
+    os.unlink(m32)
+
+def create_asms(makefile):
+    #create a custom makefile out of the provided one
+    asm_makefile = os.path.splitext(makefile)[0] + '.asm.mak'
+    with open(makefile) as fin:
+        with open(asm_makefile, 'w') as fout:
+            for line in fin:
+                # Keep everything up to the install target (it's convenient)
+                if line.startswith('install: all'):
+                    break
+                else:
+                    fout.write(line)
+            asms = []
+            for line in fin:
+                if '.asm' in line and line.strip().endswith('.pl'):
+                    asms.append(line.split(':')[0])
+                    while line.strip():
+                        fout.write(line)
+                        line = next(fin)
+                    fout.write('\n')
+
+            fout.write('asms: $(TMP_D) ')
+            fout.write(' '.join(asms))
+            fout.write('\n')
+
+    os.system('nmake /f {} PERL=perl asms'.format(asm_makefile))
+    os.unlink(asm_makefile)
+
+
+
+def fix_makefile(makefile):
+    """Fix some stuff in all makefiles
+    """
+    if not os.path.isfile(makefile):
+        return
+    with open(makefile) as fin:
+        lines = fin.readlines()
+    with open(makefile, 'w') as fout:
+        for line in lines:
+            if line.startswith("PERL="):
+                continue
+            if line.startswith("CP="):
+                line = "CP=copy\n"
+            if line.startswith("MKDIR="):
+                line = "MKDIR=mkdir\n"
+            if line.startswith("CFLAG="):
+                line = line.strip()
+                for algo in ("RC5", "MDC2", "IDEA"):
+                    noalgo = " -DOPENSSL_NO_%s" % algo
+                    if noalgo not in line:
+                        line = line + noalgo
+                line = line + '\n'
+            fout.write(line)
+
+def run_configure(configure, do_script):
+    print("perl Configure "+configure+" no-idea no-mdc2")
+    os.system("perl Configure "+configure+" no-idea no-mdc2")
+    print(do_script)
+    os.system(do_script)
+
+def cmp(f1, f2):
+    bufsize = 1024 * 8
+    with open(f1, 'rb') as fp1, open(f2, 'rb') as fp2:
+        while True:
+            b1 = fp1.read(bufsize)
+            b2 = fp2.read(bufsize)
+            if b1 != b2:
+                return False
+            if not b1:
+                return True
+
+def copy(src, dst):
+    if os.path.isfile(dst) and cmp(src, dst):
+        return
+    shutil.copy(src, dst)
+
+def prep(arch):
+    if arch == "x86":
+        configure = "VC-WIN32"
+        do_script = "ms\\do_nasm"
+        makefile="ms\\nt.mak"
+        m32 = makefile
+        dirsuffix = "32"
+    elif arch == "amd64":
+        configure = "VC-WIN64A"
+        do_script = "ms\\do_win64a"
+        makefile = "ms\\nt64.mak"
+        m32 = makefile.replace('64', '')
+        dirsuffix = "64"
+        #os.environ["VSEXTCOMP_USECL"] = "MS_OPTERON"
+    else:
+        raise ValueError('Unrecognized platform: %s' % arch)
+
+    # rebuild makefile when we do the role over from 32 to 64 build
+    if arch == "amd64" and os.path.isfile(m32) and not os.path.isfile(makefile):
+        os.unlink(m32)
+
+    # If the ssl makefiles do not exist, we invoke Perl to generate them.
+    # Due to a bug in this script, the makefile sometimes ended up empty
+    # Force a regeneration if it is.
+    if not os.path.isfile(makefile) or os.path.getsize(makefile)==0:
+        print("Creating the makefiles...")
+        sys.stdout.flush()
+        run_configure(configure, do_script)
+
+        if arch == "amd64":
+            create_makefile64(makefile, m32)
+        fix_makefile(makefile)
+        copy(r"crypto\buildinf.h", r"crypto\buildinf_%s.h" % arch)
+        copy(r"crypto\opensslconf.h", r"crypto\opensslconf_%s.h" % arch)
+    else:
+        print(makefile, 'already exists!')
+
+    print('creating asms...')
+    create_asms(makefile)
+
+def main():
+    if len(sys.argv) == 1:
+        print("Not enough arguments: directory containing OpenSSL",
+              "sources must be supplied")
+        sys.exit(1)
+
+    if len(sys.argv) > 2:
+        print("Too many arguments supplied, all we need is the directory",
+              "containing OpenSSL sources")
+        sys.exit(1)
+
+    ssl_dir = sys.argv[1]
+
+    if not os.path.isdir(ssl_dir):
+        print(ssl_dir, "is not an existing directory!")
+        sys.exit(1)
+
+    # perl should be on the path, but we also look in "\perl" and "c:\\perl"
+    # as "well known" locations
+    perls = find_all_on_path("perl.exe", ["\\perl\\bin", "C:\\perl\\bin"])
+    perl = find_working_perl(perls)
+    if perl:
+        print("Found a working perl at '%s'" % (perl,))
+    else:
+        sys.exit(1)
+    sys.stdout.flush()
+
+    # Put our working Perl at the front of our path
+    os.environ["PATH"] = os.path.dirname(perl) + \
+                                os.pathsep + \
+                                os.environ["PATH"]
+
+    old_cwd = os.getcwd()
+    try:
+        os.chdir(ssl_dir)
+        for arch in ['amd64', 'x86']:
+            prep(arch)
+    finally:
+        os.chdir(old_cwd)
+
+if __name__=='__main__':
+    main()
diff --git a/PCbuild/pyproject.props b/PCbuild/pyproject.props
index 0b513ce..e566cdc 100644
--- a/PCbuild/pyproject.props
+++ b/PCbuild/pyproject.props
@@ -5,7 +5,7 @@
     <OutDir>$(SolutionDir)</OutDir>
     <IntDir>$(SolutionDir)$(PlatformName)-temp-$(Configuration)\$(ProjectName)\</IntDir>
     <LinkIncremental>false</LinkIncremental>
-  </PropertyGroup>  
+  </PropertyGroup>
   <PropertyGroup Condition="'$(Platform)'=='x64'">
     <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
     <_PropertySheetDisplayName>amd64</_PropertySheetDisplayName>
@@ -13,7 +13,7 @@
     <IntDir>$(SolutionDir)$(PlatformName)-temp-$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <PropertyGroup Label="UserMacros">
-    <PyDllName>python34$(PyDebugExt)</PyDllName>
+    <PyDllName>python35$(PyDebugExt)</PyDllName>
     <PythonExe>$(OutDir)python$(PyDebugExt).exe</PythonExe>
     <KillPythonExe>$(OutDir)kill_python$(PyDebugExt).exe</KillPythonExe>
     <externalsDir>..\..</externalsDir>
@@ -21,12 +21,10 @@
     <bz2Dir>$(externalsDir)\bzip2-1.0.6</bz2Dir>
     <lzmaDir>$(externalsDir)\xz-5.0.5</lzmaDir>
     <opensslDir>$(externalsDir)\openssl-1.0.1i</opensslDir>
+    <tclDir>$(externalsDir)\tcl-8.6.1.0</tclDir>
+    <tkDir>$(externalsDir)\tk-8.6.1.0</tkDir>
+    <tixDir>$(externalsDir)\tix-8.4.3.4</tixDir>
     <tcltkDir>$(externalsDir)\tcltk</tcltkDir>
-    <tcltk64Dir>$(externalsDir)\tcltk64</tcltk64Dir>
-    <tcltkLib>$(tcltkDir)\lib\tcl86t.lib;$(tcltkDir)\lib\tk86t.lib</tcltkLib>
-    <tcltkLibDebug>$(tcltkDir)\lib\tcl86tg.lib;$(tcltkDir)\lib\tk86tg.lib</tcltkLibDebug>
-    <tcltk64Lib>$(tcltk64Dir)\lib\tcl86t.lib;$(tcltk64Dir)\lib\tk86t.lib</tcltk64Lib>
-    <tcltk64LibDebug>$(tcltk64Dir)\lib\tcl86tg.lib;$(tcltk64Dir)\lib\tk86tg.lib</tcltk64LibDebug>
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
@@ -82,23 +80,17 @@
     <BuildMacro Include="opensslDir">
       <Value>$(opensslDir)</Value>
     </BuildMacro>
-    <BuildMacro Include="tcltkDir">
-      <Value>$(tcltkDir)</Value>
-    </BuildMacro>
-    <BuildMacro Include="tcltk64Dir">
-      <Value>$(tcltk64Dir)</Value>
+    <BuildMacro Include="tclDir">
+      <Value>$(tclDir)</Value>
     </BuildMacro>
-    <BuildMacro Include="tcltkLib">
-      <Value>$(tcltkLib)</Value>
+    <BuildMacro Include="tkDir">
+      <Value>$(tkDir)</Value>
     </BuildMacro>
-    <BuildMacro Include="tcltkLibDebug">
-      <Value>$(tcltkLibDebug)</Value>
+    <BuildMacro Include="tixDir">
+      <Value>$(tixDir)</Value>
     </BuildMacro>
-    <BuildMacro Include="tcltk64Lib">
-      <Value>$(tcltk64Lib)</Value>
-    </BuildMacro>
-    <BuildMacro Include="tcltk64LibDebug">
-      <Value>$(tcltk64LibDebug)</Value>
+    <BuildMacro Include="tcltkDir">
+      <Value>$(tcltkDir)</Value>
     </BuildMacro>
   </ItemGroup>
-</Project>
+</Project>
+\ No newline at end of file
diff --git a/PCbuild/python.vcxproj b/PCbuild/python.vcxproj
index bd12624..6cb4ef5 100644
--- a/PCbuild/python.vcxproj
+++ b/PCbuild/python.vcxproj
@@ -156,6 +156,14 @@
     <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
     <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
     <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
+    <CustomBuildAfterTargets Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Link</CustomBuildAfterTargets>
+    <CustomBuildAfterTargets Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">Link</CustomBuildAfterTargets>
+    <CustomBuildAfterTargets Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">Link</CustomBuildAfterTargets>
+    <CustomBuildAfterTargets Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">Link</CustomBuildAfterTargets>
+    <CustomBuildAfterTargets Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">Link</CustomBuildAfterTargets>
+    <CustomBuildAfterTargets Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">Link</CustomBuildAfterTargets>
+    <CustomBuildAfterTargets Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Link</CustomBuildAfterTargets>
+    <CustomBuildAfterTargets Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Link</CustomBuildAfterTargets>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
@@ -176,6 +184,25 @@
       <StackReserveSize>2000000</StackReserveSize>
       <BaseAddress>0x1d000000</BaseAddress>
     </Link>
+    <CustomBuildStep>
+      <Command>echo @rem This script invokes the most recently built Python with all arguments&gt; "$(SolutionDir)..\python.bat"
+echo @rem passed through to the interpreter.  This file is generated by the&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem build process and any changes *will* be thrown away by the next&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem rebuild.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem This is only meant as a convenience for developing CPython&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem and using it outside of that context is ill-advised.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @echo Running $(Configuration)^^^|$(Platform) interpreter...&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @"$(OutDir)python$(PyDebugExt).exe" %%*&gt;&gt; "$(SolutionDir)..\python.bat"</Command>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Message>Creating convenience batch file for easily invoking the newly built interpreter.</Message>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Outputs>$(SolutionDir)..\python.bat</Outputs>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Inputs>$(OutDir)python$(PyDebugExt).exe;%(Inputs)</Inputs>
+    </CustomBuildStep>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <Midl>
@@ -199,6 +226,25 @@
       <StackReserveSize>2000000</StackReserveSize>
       <BaseAddress>0x1d000000</BaseAddress>
     </Link>
+    <CustomBuildStep>
+      <Command>echo @rem This script invokes the most recently built Python with all arguments&gt; "$(SolutionDir)..\python.bat"
+echo @rem passed through to the interpreter.  This file is generated by the&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem build process and any changes *will* be thrown away by the next&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem rebuild.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem This is only meant as a convenience for developing CPython&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem and using it outside of that context is ill-advised.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @echo Running $(Configuration)^^^|$(Platform) interpreter...&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @"$(OutDir)python$(PyDebugExt).exe" %%*&gt;&gt; "$(SolutionDir)..\python.bat"</Command>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Message>Creating convenience batch file for easily invoking the newly built interpreter.</Message>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Outputs>$(SolutionDir)..\python.bat</Outputs>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Inputs>$(OutDir)python$(PyDebugExt).exe;%(Inputs)</Inputs>
+    </CustomBuildStep>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
@@ -221,6 +267,25 @@
       <StackReserveSize>2000000</StackReserveSize>
       <BaseAddress>0x1d000000</BaseAddress>
     </Link>
+    <CustomBuildStep>
+      <Command>echo @rem This script invokes the most recently built Python with all arguments&gt; "$(SolutionDir)..\python.bat"
+echo @rem passed through to the interpreter.  This file is generated by the&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem build process and any changes *will* be thrown away by the next&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem rebuild.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem This is only meant as a convenience for developing CPython&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem and using it outside of that context is ill-advised.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @echo Running $(Configuration)^^^|$(Platform) interpreter...&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @"$(OutDir)python$(PyDebugExt).exe" %%*&gt;&gt; "$(SolutionDir)..\python.bat"</Command>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Message>Creating convenience batch file for easily invoking the newly built interpreter.</Message>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Outputs>$(SolutionDir)..\python.bat</Outputs>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Inputs>$(OutDir)python$(PyDebugExt).exe;%(Inputs)</Inputs>
+    </CustomBuildStep>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <Midl>
@@ -246,6 +311,25 @@
       <StackReserveSize>4194304</StackReserveSize>
       <BaseAddress>0x1d000000</BaseAddress>
     </Link>
+    <CustomBuildStep>
+      <Command>echo @rem This script invokes the most recently built Python with all arguments&gt; "$(SolutionDir)..\python.bat"
+echo @rem passed through to the interpreter.  This file is generated by the&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem build process and any changes *will* be thrown away by the next&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem rebuild.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem This is only meant as a convenience for developing CPython&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem and using it outside of that context is ill-advised.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @echo Running $(Configuration)^^^|$(Platform) interpreter...&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @"$(OutDir)python$(PyDebugExt).exe" %%*&gt;&gt; "$(SolutionDir)..\python.bat"</Command>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Message>Creating convenience batch file for easily invoking the newly built interpreter.</Message>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Outputs>$(SolutionDir)..\python.bat</Outputs>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Inputs>$(OutDir)python$(PyDebugExt).exe;%(Inputs)</Inputs>
+    </CustomBuildStep>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">
     <ClCompile>
@@ -268,6 +352,25 @@
       <ImportLibrary>
       </ImportLibrary>
     </Link>
+    <CustomBuildStep>
+      <Command>echo @rem This script invokes the most recently built Python with all arguments&gt; "$(SolutionDir)..\python.bat"
+echo @rem passed through to the interpreter.  This file is generated by the&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem build process and any changes *will* be thrown away by the next&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem rebuild.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem This is only meant as a convenience for developing CPython&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem and using it outside of that context is ill-advised.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @echo Running $(Configuration)^^^|$(Platform) interpreter...&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @"$(OutDir)python$(PyDebugExt).exe" %%*&gt;&gt; "$(SolutionDir)..\python.bat"</Command>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Message>Creating convenience batch file for easily invoking the newly built interpreter.</Message>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Outputs>$(SolutionDir)..\python.bat</Outputs>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Inputs>$(OutDir)python$(PyDebugExt).exe;%(Inputs)</Inputs>
+    </CustomBuildStep>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">
     <Midl>
@@ -294,6 +397,25 @@
       </ImportLibrary>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
+    <CustomBuildStep>
+      <Command>echo @rem This script invokes the most recently built Python with all arguments&gt; "$(SolutionDir)..\python.bat"
+echo @rem passed through to the interpreter.  This file is generated by the&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem build process and any changes *will* be thrown away by the next&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem rebuild.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem This is only meant as a convenience for developing CPython&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem and using it outside of that context is ill-advised.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @echo Running $(Configuration)^^^|$(Platform) interpreter...&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @"$(OutDir)python$(PyDebugExt).exe" %%*&gt;&gt; "$(SolutionDir)..\python.bat"</Command>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Message>Creating convenience batch file for easily invoking the newly built interpreter.</Message>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Outputs>$(SolutionDir)..\python.bat</Outputs>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Inputs>$(OutDir)python$(PyDebugExt).exe;%(Inputs)</Inputs>
+    </CustomBuildStep>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">
     <ClCompile>
@@ -316,6 +438,25 @@
       <ImportLibrary>
       </ImportLibrary>
     </Link>
+    <CustomBuildStep>
+      <Command>echo @rem This script invokes the most recently built Python with all arguments&gt; "$(SolutionDir)..\python.bat"
+echo @rem passed through to the interpreter.  This file is generated by the&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem build process and any changes *will* be thrown away by the next&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem rebuild.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem This is only meant as a convenience for developing CPython&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem and using it outside of that context is ill-advised.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @echo Running $(Configuration)^^^|$(Platform) interpreter...&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @"$(OutDir)python$(PyDebugExt).exe" %%*&gt;&gt; "$(SolutionDir)..\python.bat"</Command>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Message>Creating convenience batch file for easily invoking the newly built interpreter.</Message>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Outputs>$(SolutionDir)..\python.bat</Outputs>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Inputs>$(OutDir)python$(PyDebugExt).exe;%(Inputs)</Inputs>
+    </CustomBuildStep>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">
     <Midl>
@@ -342,6 +483,25 @@
       </ImportLibrary>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
+    <CustomBuildStep>
+      <Command>echo @rem This script invokes the most recently built Python with all arguments&gt; "$(SolutionDir)..\python.bat"
+echo @rem passed through to the interpreter.  This file is generated by the&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem build process and any changes *will* be thrown away by the next&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem rebuild.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem This is only meant as a convenience for developing CPython&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @rem and using it outside of that context is ill-advised.&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @echo Running $(Configuration)^^^|$(Platform) interpreter...&gt;&gt; "$(SolutionDir)..\python.bat"
+echo @"$(OutDir)python$(PyDebugExt).exe" %%*&gt;&gt; "$(SolutionDir)..\python.bat"</Command>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Message>Creating convenience batch file for easily invoking the newly built interpreter.</Message>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Outputs>$(SolutionDir)..\python.bat</Outputs>
+    </CustomBuildStep>
+    <CustomBuildStep>
+      <Inputs>$(OutDir)python$(PyDebugExt).exe;%(Inputs)</Inputs>
+    </CustomBuildStep>
   </ItemDefinitionGroup>
   <ItemGroup>
     <None Include="..\PC\pycon.ico" />
@@ -350,7 +510,7 @@
     <ResourceCompile Include="..\PC\python_exe.rc" />
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\python.c" />
+    <ClCompile Include="..\Programs\python.c" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="pythoncore.vcxproj">
@@ -361,4 +521,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>
+\ No newline at end of file
diff --git a/PCbuild/python.vcxproj.filters b/PCbuild/python.vcxproj.filters
index e4906a4..0662a4e 100644
--- a/PCbuild/python.vcxproj.filters
+++ b/PCbuild/python.vcxproj.filters
@@ -19,8 +19,8 @@
     </ResourceCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\python.c">
+    <ClCompile Include="..\Programs\python.c">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
-</Project>
-\ No newline at end of file
+</Project>
diff --git a/PCbuild/pythoncore.vcxproj b/PCbuild/pythoncore.vcxproj
index 6021cd7..1ad16fb 100644
--- a/PCbuild/pythoncore.vcxproj
+++ b/PCbuild/pythoncore.vcxproj
@@ -176,7 +176,7 @@
       <Command>"$(SolutionDir)make_buildinfo.exe" Release "$(IntDir)\"</Command>
     </PreLinkEvent>
     <Link>
-      <AdditionalDependencies>$(IntDir)getbuildinfo.o;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(IntDir)getbuildinfo.o;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)$(PyDllName).dll</OutputFile>
       <IgnoreSpecificDefaultLibraries>libc;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <BaseAddress>0x1e000000</BaseAddress>
@@ -212,7 +212,7 @@ IF %ERRORLEVEL% NEQ 0 (
       <Command>"$(SolutionDir)make_buildinfo.exe" Release "$(IntDir)\"</Command>
     </PreLinkEvent>
     <Link>
-      <AdditionalDependencies>$(IntDir)getbuildinfo.o;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(IntDir)getbuildinfo.o;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <IgnoreSpecificDefaultLibraries>libc;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <BaseAddress>0x1e000000</BaseAddress>
     </Link>
@@ -247,7 +247,7 @@ IF %ERRORLEVEL% NEQ 0 (
       <Command>"$(SolutionDir)make_buildinfo.exe" Debug "$(IntDir)"</Command>
     </PreLinkEvent>
     <Link>
-      <AdditionalDependencies>$(IntDir)getbuildinfo.o;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(IntDir)getbuildinfo.o;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <IgnoreSpecificDefaultLibraries>libc;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <BaseAddress>0x1e000000</BaseAddress>
     </Link>
@@ -285,7 +285,7 @@ IF %ERRORLEVEL% NEQ 0 (
       <Command>"$(SolutionDir)make_buildinfo.exe" Debug "$(IntDir)"</Command>
     </PreLinkEvent>
     <Link>
-      <AdditionalDependencies>$(IntDir)getbuildinfo.o;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(IntDir)getbuildinfo.o;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <IgnoreSpecificDefaultLibraries>libc;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <BaseAddress>0x1e000000</BaseAddress>
     </Link>
@@ -317,7 +317,7 @@ IF %ERRORLEVEL% NEQ 0 (
       <Command>"$(SolutionDir)make_buildinfo.exe" Release "$(IntDir)\"</Command>
     </PreLinkEvent>
     <Link>
-      <AdditionalDependencies>$(IntDir)getbuildinfo.o;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(IntDir)getbuildinfo.o;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)$(PyDllName).dll</OutputFile>
       <IgnoreSpecificDefaultLibraries>libc;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <BaseAddress>0x1e000000</BaseAddress>
@@ -353,7 +353,7 @@ IF %ERRORLEVEL% NEQ 0 (
       <Command>"$(SolutionDir)make_buildinfo.exe" Release "$(IntDir)\"</Command>
     </PreLinkEvent>
     <Link>
-      <AdditionalDependencies>$(IntDir)getbuildinfo.o;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(IntDir)getbuildinfo.o;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <IgnoreSpecificDefaultLibraries>libc;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <BaseAddress>0x1e000000</BaseAddress>
       <TargetMachine>MachineX64</TargetMachine>
@@ -386,7 +386,7 @@ IF %ERRORLEVEL% NEQ 0 (
       <Command>"$(SolutionDir)make_buildinfo.exe" Release "$(IntDir)\"</Command>
     </PreLinkEvent>
     <Link>
-      <AdditionalDependencies>$(IntDir)getbuildinfo.o;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(IntDir)getbuildinfo.o;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)$(PyDllName).dll</OutputFile>
       <IgnoreSpecificDefaultLibraries>libc;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <BaseAddress>0x1e000000</BaseAddress>
@@ -422,7 +422,7 @@ IF %ERRORLEVEL% NEQ 0 (
       <Command>"$(SolutionDir)make_buildinfo.exe" Release "$(IntDir)\"</Command>
     </PreLinkEvent>
     <Link>
-      <AdditionalDependencies>$(IntDir)getbuildinfo.o;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>$(IntDir)getbuildinfo.o;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <IgnoreSpecificDefaultLibraries>libc;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <BaseAddress>0x1e000000</BaseAddress>
       <TargetMachine>MachineX64</TargetMachine>
diff --git a/PCbuild/readme.txt b/PCbuild/readme.txt
index 7d57726..d5ef00f 100644
--- a/PCbuild/readme.txt
+++ b/PCbuild/readme.txt
@@ -1,3 +1,13 @@
+Quick Start Guide
+-----------------
+
+1.  Install Microsoft Visual C++ 2010 SP1, any edition.
+2.  Install Subversion, and make sure 'svn.exe' is on your PATH.
+3.  Install NASM, and make sure 'nasm.exe' is on your PATH.
+4.  Run "build.bat -e" to build Python in 32-bit Release configuration.
+5.  (Optional, but recommended) Run the test suite with "rt.bat -q".
+
+
 Building Python using Microsoft Visual C++
 ------------------------------------------
 
@@ -27,8 +37,8 @@ All you need to do to build is open the solution "pcbuild.sln" in Visual
 Studio, select the desired combination of configuration and platform,
 then build with "Build Solution" or the F7 keyboard shortcut.  You can
 also build from the command line using the "build.bat" script in this
-directory.  The solution is configured to build the projects in the
-correct order.
+directory; see below for details.  The solution is configured to build
+the projects in the correct order.
 
 The solution currently supports two platforms.  The Win32 platform is
 used to build standard x86-compatible 32-bit binaries, output into this
@@ -43,7 +53,7 @@ Debug
     Used to build Python with extra debugging capabilities, equivalent
     to using ./configure --with-pydebug on UNIX.  All binaries built
     using this configuration have "_d" added to their name:
-    python34_d.dll, python_d.exe, parser_d.pyd, and so on.  Both the
+    python35_d.dll, python_d.exe, parser_d.pyd, and so on.  Both the
     build and rt (run test) batch files in this directory accept a -d
     option for debug builds.  If you are building Python to help with
     development of CPython, you will most likely use this configuration.
@@ -59,6 +69,26 @@ Release
     settings, though without PGO.
 
 
+Building Python using the build.bat script
+----------------------------------------------
+
+In this directory you can find build.bat, a script designed to make
+building Python on Windows simpler.  The only absolute requirement for
+using this script is for the VS100COMNTOOLS environment variable to be
+properly set, which should be done by Microsoft Visual C++ 2010
+installation.
+
+By default, build.bat will build Python in Release configuration for
+the 32-bit Win32 platform.  It accepts several arguments to change
+this behavior:
+
+   -c <configuration>  Set the configuration (see above)
+   -d                  Shortcut for "-c Debug"
+   -p <platform>       Set the platform to build for ("Win32" or "x64")
+   -r                  Rebuild instead of just building
+   -e                  Use get_externals.bat to fetch external sources
+
+
 Legacy support
 --------------
 
@@ -184,30 +214,19 @@ _ssl
     you should first try to update NASM and do a full rebuild of
     OpenSSL.
 
-    If you like to use the official sources instead of the files from
-    python.org's subversion repository, Perl is required to build the
-    necessary makefiles and assembly files.  ActivePerl is available
-    from
+    The ssl sub-project expects your OpenSSL sources to have already
+    been configured and be ready to build.  If you get your sources
+    from svn.python.org as suggested in the "Getting External Sources"
+    section below, the OpenSSL source will already be ready to go.  If
+    you want to build a different version, you will need to run
+
+       PCbuild\prepare_ssl.py path\to\openssl-source-dir
+
+    That script will prepare your OpenSSL sources in the same way that
+    those available on svn.python.org have been prepared.  Note that
+    Perl must be installed and available on your PATH to configure
+    OpenSSL.  ActivePerl is recommended and is available from
         http://www.activestate.com/activeperl/
-    The svn.python.org version contains pre-built makefiles and assembly
-    files.
-
-    The build process makes sure that no patented algorithms are
-    included.  For now RC5, MDC2 and IDEA are excluded from the build.
-    You may have to manually remove $(OBJ_D)\i_*.obj from ms\nt.mak if
-    using official sources; the svn.python.org-hosted version is already
-    fixed.
-
-    The ssl.vcxproj sub-project simply invokes PCbuild/build_ssl.py,
-    which locates and builds OpenSSL.
-
-    build_ssl.py attempts to catch the most common errors (such as not
-    being able to find OpenSSL sources, or not being able to find a Perl
-    that works with OpenSSL) and give a reasonable error message.  If
-    you have a problem that doesn't seem to be handled correctly (e.g.,
-    you know you have ActivePerl but we can't find it), please take a
-    peek at build_ssl.py and suggest patches.  Note that build_ssl.py
-    should be able to be run directly from the command-line.
 
     The ssl sub-project does not have the ability to clean the OpenSSL
     build; if you need to rebuild, you'll have to clean it by hand.
@@ -220,11 +239,19 @@ _tkinter
     Homepage:
         http://www.tcl.tk/
 
-    Unlike the other external libraries listed above, Tk must be built
-    separately before the _tkinter module can be built. This means that
-    a pre-built Tcl/Tk installation is expected in ..\..\tcltk (tcltk64
-    for 64-bit) relative to this directory.  See "Getting External
-    Sources" below for the easiest method to ensure Tcl/Tk is built.
+    Tkinter's dependencies are built by the tcl.vcxproj and tk.vcxproj
+    projects.  The tix.vcxproj project also builds the Tix extended
+    widget set for use with Tkinter.
+
+    Those three projects install their respective components in a
+    directory alongside the source directories called "tcltk" on
+    Win32 and "tcltk64" on x64.  They also copy the Tcl and Tk DLLs
+    into the current output directory, which should ensure that Tkinter
+    is able to load Tcl/Tk without having to change your PATH.
+
+    The tcl, tk, and tix sub-projects do not have the ability to clean
+    their builds; if you need to rebuild, you'll have to clean them by
+    hand.
 
 
 Getting External Sources
@@ -233,45 +260,18 @@ Getting External Sources
 The last category of sub-projects listed above wrap external projects
 Python doesn't control, and as such a little more work is required in
 order to download the relevant source files for each project before they
-can be built.  The buildbots must ensure that all libraries are present
-before building, so the easiest approach is to run either external.bat
-or external-amd64.bat (depending on platform) in the ..\Tools\buildbot
-directory from ..\, i.e.:
-
-    C:\python\cpython\PCbuild>cd ..
-    C:\python\cpython>Tools\buildbot\external.bat
-
-This extracts all the external sub-projects from
+can be built.  However, a simple script is provided to make this as
+painless as possible, called "get_externals.bat" and located in this
+directory.  This script extracts all the external sub-projects from
     http://svn.python.org/projects/external
-via Subversion (so you'll need an svn.exe on your PATH) and places them
+via Subversion (so you'll need svn.exe on your PATH) and places them
 in ..\.. (relative to this directory).
 
 It is also possible to download sources from each project's homepage,
-though you may have to change the names of some folders in order to make
-things work.  For instance, if you were to download a version 5.0.7 of
-XZ Utils, you would need to extract the archive into ..\..\xz-5.0.5
-anyway, since that is where the solution is set to look for xz.  The
-same is true for all other external projects.
-
-The external(-amd64).bat scripts will also build a debug build of
-Tcl/Tk, but there aren't any equivalent batch files for building release
-versions of Tcl/Tk currently available.  If you need to build a release
-version of Tcl/Tk, just take a look at the relevant external(-amd64).bat
-file and find the two nmake lines, then call each one without the
-'DEBUG=1' parameter, i.e.:
-
-The external-amd64.bat file contains this for tcl:
-    nmake -f makefile.vc DEBUG=1 MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 clean all install
-
-So for a release build, you'd call it as:
-    nmake -f makefile.vc MACHINE=AMD64 INSTALLDIR=..\..\tcltk64 clean all install
-
-Note that the above command is called from within ..\..\tcl-8.6.1.0\win
-(relative to this directory); don't forget to build Tk as well as Tcl!
-
-This will be cleaned up in the future; http://bugs.python.org/issue15968
-tracks adding a new tcltk.vcxproj file that will build Tcl/Tk and Tix
-the same way the other external projects listed above are built.
+though you may have to change folder names or pass the names to MSBuild
+as the values of certain properties in order for the build solution to
+find them.  This is an advanced topic and not necessarily fully
+supported.
 
 
 Building for AMD64
@@ -335,6 +335,7 @@ The property files used are (+-- = "also imports"):
  * pyproject (base settings for all projects, user macros like PyDllName)
  * release (release macro: NDEBUG)
  * sqlite3 (used only by sqlite3.vcxproj)
+ * tcltk (used by _tkinter, tcl, tk and tix projects)
  * x64 (AMD64 / x64 platform specific settings)
 
 The pyproject property file defines _WIN32 and x64 defines _WIN64 and
diff --git a/PCbuild/release.props b/PCbuild/release.props
index acfe3e4..b460f01 100644
--- a/PCbuild/release.props
+++ b/PCbuild/release.props
@@ -2,6 +2,7 @@
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="UserMacros">
     <PyDebugExt />
+    <TclDebugExt />
   </PropertyGroup>
   <PropertyGroup>
     <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
@@ -15,5 +16,8 @@
     <BuildMacro Include="PyDebugExt">
       <Value>$(PyDebugExt)</Value>
     </BuildMacro>
+    <BuildMacro Include="TclDebugExt">
+      <Value>$(TclDebugExt)</Value>
+    </BuildMacro>
   </ItemGroup>
 </Project>
 \ No newline at end of file
diff --git a/PCbuild/ssl.vcxproj b/PCbuild/ssl.vcxproj
index d5eac9a..5f318d0 100644
--- a/PCbuild/ssl.vcxproj
+++ b/PCbuild/ssl.vcxproj
@@ -118,9 +118,12 @@
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup>
     <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
-    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">cd "$(SolutionDir)"
-"$(PythonExe)" build_ssl.py Release $(Platform) -a
-</NMakeBuildCommandLine>
+    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+cd "$(SolutionDir)$(opensslDir)"
+copy /Y crypto\buildinf_x86.h crypto\buildinf.h
+copy /Y crypto\opensslconf_x86.h crypto\opensslconf.h
+nmake /nologo -f "ms\nt.mak"
+	</NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
@@ -129,9 +132,13 @@
     <NMakeForcedIncludes Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(NMakeForcedIncludes)</NMakeForcedIncludes>
     <NMakeAssemblySearchPath Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(NMakeAssemblySearchPath)</NMakeAssemblySearchPath>
     <NMakeForcedUsingAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(NMakeForcedUsingAssemblies)</NMakeForcedUsingAssemblies>
-    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">cd "$(SolutionDir)"
-"$(PythonExe)" build_ssl.py Release $(Platform) -a
-</NMakeBuildCommandLine>
+    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+cd "$(SolutionDir)$(opensslDir)"
+nasm -f win64 -DNEAR -Ox -g ms\\uptable.asm || echo nasm failed! &amp;&amp; exit
+copy /Y crypto\buildinf_amd64.h crypto\buildinf.h
+copy /Y crypto\opensslconf_amd64.h crypto\opensslconf.h
+nmake /nologo -f "ms\nt64.mak"
+	</NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
@@ -140,9 +147,12 @@
     <NMakeForcedIncludes Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(NMakeForcedIncludes)</NMakeForcedIncludes>
     <NMakeAssemblySearchPath Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(NMakeAssemblySearchPath)</NMakeAssemblySearchPath>
     <NMakeForcedUsingAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(NMakeForcedUsingAssemblies)</NMakeForcedUsingAssemblies>
-    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">cd "$(SolutionDir)"
-"$(PythonExe)" build_ssl.py Release $(Platform) -a
-</NMakeBuildCommandLine>
+    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+cd "$(SolutionDir)$(opensslDir)"
+copy /Y crypto\buildinf_x86.h crypto\buildinf.h
+copy /Y crypto\opensslconf_x86.h crypto\opensslconf.h
+nmake /nologo -f "ms\nt.mak"
+	</NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
@@ -151,9 +161,13 @@
     <NMakeForcedIncludes Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(NMakeForcedIncludes)</NMakeForcedIncludes>
     <NMakeAssemblySearchPath Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(NMakeAssemblySearchPath)</NMakeAssemblySearchPath>
     <NMakeForcedUsingAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(NMakeForcedUsingAssemblies)</NMakeForcedUsingAssemblies>
-    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|x64'">cd "$(SolutionDir)"
-"$(PythonExe)" build_ssl.py Release $(Platform) -a
-</NMakeBuildCommandLine>
+    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+cd "$(SolutionDir)$(opensslDir)"
+nasm -f win64 -DNEAR -Ox -g ms\\uptable.asm || echo nasm failed! &amp;&amp; exit
+copy /Y crypto\buildinf_amd64.h crypto\buildinf.h
+copy /Y crypto\opensslconf_amd64.h crypto\opensslconf.h
+nmake /nologo -f "ms\nt64.mak"
+	</NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|x64'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
@@ -162,9 +176,12 @@
     <NMakeForcedIncludes Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(NMakeForcedIncludes)</NMakeForcedIncludes>
     <NMakeAssemblySearchPath Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(NMakeAssemblySearchPath)</NMakeAssemblySearchPath>
     <NMakeForcedUsingAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(NMakeForcedUsingAssemblies)</NMakeForcedUsingAssemblies>
-    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">cd "$(SolutionDir)"
-"$(PythonExe)" build_ssl.py Release $(Platform) -a
-</NMakeBuildCommandLine>
+    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">
+cd "$(SolutionDir)$(opensslDir)"
+copy /Y crypto\buildinf_x86.h crypto\buildinf.h
+copy /Y crypto\opensslconf_x86.h crypto\opensslconf.h
+nmake /nologo -f "ms\nt.mak"
+	</NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" />
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" />
@@ -173,9 +190,13 @@
     <NMakeForcedIncludes Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">$(NMakeForcedIncludes)</NMakeForcedIncludes>
     <NMakeAssemblySearchPath Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">$(NMakeAssemblySearchPath)</NMakeAssemblySearchPath>
     <NMakeForcedUsingAssemblies Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">$(NMakeForcedUsingAssemblies)</NMakeForcedUsingAssemblies>
-    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">cd "$(SolutionDir)"
-"$(PythonExe)" build_ssl.py Release $(Platform) -a
-</NMakeBuildCommandLine>
+    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">
+cd "$(SolutionDir)$(opensslDir)"
+nasm -f win64 -DNEAR -Ox -g ms\\uptable.asm || echo nasm failed! &amp;&amp; exit
+copy /Y crypto\buildinf_amd64.h crypto\buildinf.h
+copy /Y crypto\opensslconf_amd64.h crypto\opensslconf.h
+nmake /nologo -f "ms\nt64.mak"
+	</NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" />
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" />
@@ -184,9 +205,12 @@
     <NMakeForcedIncludes Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">$(NMakeForcedIncludes)</NMakeForcedIncludes>
     <NMakeAssemblySearchPath Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">$(NMakeAssemblySearchPath)</NMakeAssemblySearchPath>
     <NMakeForcedUsingAssemblies Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">$(NMakeForcedUsingAssemblies)</NMakeForcedUsingAssemblies>
-    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">cd "$(SolutionDir)"
-"$(PythonExe)" build_ssl.py Release $(Platform) -a
-</NMakeBuildCommandLine>
+    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">
+cd "$(SolutionDir)$(opensslDir)"
+copy /Y crypto\buildinf_x86.h crypto\buildinf.h
+copy /Y crypto\opensslconf_x86.h crypto\opensslconf.h
+nmake /nologo -f "ms\nt.mak"
+	</NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" />
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" />
@@ -195,9 +219,13 @@
     <NMakeForcedIncludes Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">$(NMakeForcedIncludes)</NMakeForcedIncludes>
     <NMakeAssemblySearchPath Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">$(NMakeAssemblySearchPath)</NMakeAssemblySearchPath>
     <NMakeForcedUsingAssemblies Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">$(NMakeForcedUsingAssemblies)</NMakeForcedUsingAssemblies>
-    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">cd "$(SolutionDir)"
-"$(PythonExe)" build_ssl.py Release $(Platform) -a
-</NMakeBuildCommandLine>
+    <NMakeBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">
+cd "$(SolutionDir)$(opensslDir)"
+nasm -f win64 -DNEAR -Ox -g ms\\uptable.asm || echo nasm failed! &amp;&amp; exit
+copy /Y crypto\buildinf_amd64.h crypto\buildinf.h
+copy /Y crypto\opensslconf_amd64.h crypto\opensslconf.h
+nmake /nologo -f "ms\nt64.mak"
+	</NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" />
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" />
@@ -209,12 +237,6 @@
   </PropertyGroup>
   <ItemDefinitionGroup>
   </ItemDefinitionGroup>
-  <ItemGroup>
-    <ProjectReference Include="python.vcxproj">
-      <Project>{b11d750f-cd1f-4a96-85ce-e69a5c5259f9}</Project>
-      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
-    </ProjectReference>
-  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
diff --git a/PCbuild/tcl.vcxproj b/PCbuild/tcl.vcxproj
new file mode 100644
index 0000000..dc426b3
--- /dev/null
+++ b/PCbuild/tcl.vcxproj
@@ -0,0 +1,175 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGInstrument|Win32">
+      <Configuration>PGInstrument</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGInstrument|x64">
+      <Configuration>PGInstrument</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGUpdate|Win32">
+      <Configuration>PGUpdate</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGUpdate|x64">
+      <Configuration>PGUpdate</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{B5FD6F1D-129E-4BFF-9340-03606FAC7283}</ProjectGuid>
+    <RootNamespace>tcl</RootNamespace>
+    <Keyword>MakeFileProj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="pgupdate.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="pginstrument.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="release.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="debug.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="pgupdate.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="pginstrument.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="release.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="debug.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <NMakeBuildCommandLine>
+IF EXIST $(tcltkDir)\include\tcl.h (
+    IF EXIST $(tcltkDir)\bin\$(tclDLLName) (
+        IF EXIST $(OutDir)$(tclDLLName) (
+            echo Tcl is already built and available.
+            exit /b 0
+        ) ELSE (
+            echo Copying tcl dll to $(OutDir)
+            xcopy $(tcltkDir)\bin\$(tclDLLName) $(OutDir)
+            exit /b 0
+        )
+    )
+)
+
+IF NOT EXIST $(tclDir) (
+    echo error: $(tclDir) doesn't exist.
+    exit 1
+)
+
+IF "$(Platform)" EQU "Win32" set TclMachine=IX86
+IF "$(Platform)" EQU "x64" set TclMachine=AMD64
+
+IF "$(Configuration)" EQU "Debug" (
+    set TclOpts=symbols
+) ELSE (
+    set TclOpts=
+)
+
+cd $(tclDir)\win
+
+nmake -f makefile.vc MACHINE=%TclMachine% OPTS=%TclOpts% core shell dlls &amp;&amp; nmake -f makefile.vc MACHINE=%TclMachine% OPTS=%TclOpts% INSTALLDIR=$(SolutionDir)$(tcltkDir) install-binaries install-libraries &amp;&amp; xcopy /y $(SolutionDir)$(tcltkDir)\bin\$(tclDLLName) $(OutDir)
+    </NMakeBuildCommandLine>
+    <NMakeCleanCommandLine>del $(OutDir)$(tclDLLName)
+echo Tcl must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/PCbuild/tcltk.props b/PCbuild/tcltk.props
new file mode 100644
index 0000000..c169427
--- /dev/null
+++ b/PCbuild/tcltk.props
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ImportGroup Label="PropertySheets" />
+  <PropertyGroup Label="UserMacros">
+    <MSDEVDIR>Dummy value to avoid patching Tcl/Tk's makefile.vc</MSDEVDIR>
+    <tclDLLName>tcl86t$(TclDebugExt).dll</tclDLLName>
+    <tkDLLName>tk86t$(TclDebugExt).dll</tkDLLName>
+    <tixDLLName>tix84$(TclDebugExt).dll</tixDLLName>
+    <tcltkLib>$(tcltkDir)\lib\tcl86t$(TclDebugExt).lib;$(tcltkDir)\lib\tk86t$(TclDebugExt).lib</tcltkLib>
+  </PropertyGroup>
+  <ItemDefinitionGroup />
+  <ItemGroup>
+    <BuildMacro Include="MSDEVDIR">
+      <Value>$(MSDEVDIR)</Value>
+      <EnvironmentVariable>true</EnvironmentVariable>
+    </BuildMacro>
+    <BuildMacro Include="tclDLLName">
+      <Value>$(tclDLLName)</Value>
+    </BuildMacro>
+    <BuildMacro Include="tkDLLName">
+      <Value>$(tkDLLName)</Value>
+    </BuildMacro>
+    <BuildMacro Include="tixDLLName">
+      <Value>$(tixDLLName)</Value>
+    </BuildMacro>
+    <BuildMacro Include="tcltkLib">
+      <Value>$(tcltkLib)</Value>
+    </BuildMacro>
+  </ItemGroup>
+</Project>
+\ No newline at end of file
diff --git a/PCbuild/tix.vcxproj b/PCbuild/tix.vcxproj
new file mode 100644
index 0000000..a177f5c
--- /dev/null
+++ b/PCbuild/tix.vcxproj
@@ -0,0 +1,171 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGInstrument|Win32">
+      <Configuration>PGInstrument</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGInstrument|x64">
+      <Configuration>PGInstrument</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGUpdate|Win32">
+      <Configuration>PGUpdate</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGUpdate|x64">
+      <Configuration>PGUpdate</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}</ProjectGuid>
+    <RootNamespace>tix</RootNamespace>
+    <Keyword>MakeFileProj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="pgupdate.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="pginstrument.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="release.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="debug.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="pgupdate.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="pginstrument.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="release.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="debug.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <NMakeBuildCommandLine>
+IF EXIST $(tcltkDir)\lib\tix8.4.3\$(tixDLLName) (
+    echo Tix is already built and available.
+    exit /b 0
+)
+
+IF NOT EXIST $(tixDir) (
+    echo error: $(tixDir) doesn't exist.
+    exit 1
+)
+
+IF "$(Platform)" EQU "Win32" set TclMachine=IX86
+IF "$(Platform)" EQU "x64" set TclMachine=AMD64
+
+IF "$(Configuration)" EQU "Debug" (
+    set TixDebug=1
+) ELSE (
+    set TixDebug=0
+)
+
+cd $(tixDir)\win
+nmake -f python.mak MACHINE=%TclMachine% DEBUG=%TixDebug% TCL_DIR=$(SolutionDir)$(tclDir) TK_DIR=$(SolutionDir)$(tkDir) all &amp;&amp; nmake -f python.mak MACHINE=%TclMachine% DEBUG=%TixDebug% TCL_DIR=$(SolutionDir)$(tclDir) TK_DIR=$(SolutionDir)$(tkDir) INSTALL_DIR=$(SolutionDir)$(tcltkDir) install
+    </NMakeBuildCommandLine>
+    <NMakeCleanCommandLine>echo Tix must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ProjectReference Include="tcl.vcxproj">
+      <Project>{b5fd6f1d-129e-4bff-9340-03606fac7283}</Project>
+    </ProjectReference>
+    <ProjectReference Include="tk.vcxproj">
+      <Project>{7e85eccf-a72c-4da4-9e52-884508e80ba1}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/PCbuild/tk.vcxproj b/PCbuild/tk.vcxproj
new file mode 100644
index 0000000..d760f87
--- /dev/null
+++ b/PCbuild/tk.vcxproj
@@ -0,0 +1,178 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGInstrument|Win32">
+      <Configuration>PGInstrument</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGInstrument|x64">
+      <Configuration>PGInstrument</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGUpdate|Win32">
+      <Configuration>PGUpdate</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="PGUpdate|x64">
+      <Configuration>PGUpdate</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{7E85ECCF-A72C-4DA4-9E52-884508E80BA1}</ProjectGuid>
+    <RootNamespace>tk</RootNamespace>
+    <Keyword>MakeFileProj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Makefile</ConfigurationType>
+    <CharacterSet>NotSet</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="pgupdate.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="pginstrument.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="release.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="debug.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="pgupdate.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="pginstrument.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="release.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="pyproject.props" />
+    <Import Project="x64.props" />
+    <Import Project="debug.props" />
+    <Import Project="tcltk.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <NMakeBuildCommandLine>
+IF EXIST $(tcltkDir)\include\tk.h (
+    IF EXIST $(tcltkDir)\bin\$(tkDLLName) (
+        IF EXIST $(OutDir)$(tkDLLName) (
+            echo Tk is already built and available.
+            exit /b 0
+        ) ELSE (
+            echo Copying tk dll to $(OutDir)
+            xcopy $(tcltkDir)\bin\$(tkDLLName) $(OutDir)
+            exit /b 0
+        )
+    )
+)
+
+IF NOT EXIST $(tkDir) (
+    echo error: $(tkDir) doesn't exist.
+    exit 1
+)
+
+IF "$(Platform)" EQU "Win32" set TclMachine=IX86
+IF "$(Platform)" EQU "x64" set TclMachine=AMD64
+
+IF "$(Configuration)" EQU "Debug" (
+    set TclOpts=symbols
+) ELSE (
+    set TclOpts=
+)
+
+cd $(tkDir)\win
+
+nmake -f makefile.vc MACHINE=%TclMachine% OPTS=%TclOpts% TCLDIR=$(SolutionDir)$(tclDir) all &amp;&amp; nmake -f makefile.vc MACHINE=%TclMachine% OPTS=%TclOpts% TCLDIR=$(SolutionDir)$(tclDir) INSTALLDIR=$(SolutionDir)$(tcltkDir) install-binaries install-libraries &amp;&amp; xcopy /y $(SolutionDir)$(tcltkDir)\bin\$(tkDLLName) $(OutDir)
+    </NMakeBuildCommandLine>
+    <NMakeCleanCommandLine>del $(OutDir)$(tkDLLName)
+echo Tk must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ProjectReference Include="tcl.vcxproj">
+      <Project>{b5fd6f1d-129e-4bff-9340-03606fac7283}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
+\ No newline at end of file
diff --git a/PCbuild/x64.props b/PCbuild/x64.props
index 985c0ef..9e6f5bb 100644
--- a/PCbuild/x64.props
+++ b/PCbuild/x64.props
@@ -3,6 +3,9 @@
   <PropertyGroup Label="UserMacros" Condition="'$(HOST_PYTHON)'!=''">
     <PythonExe>$(HOST_PYTHON)</PythonExe>
   </PropertyGroup>
+  <PropertyGroup Label="UserMacros">
+    <tcltkDir>$(externalsDir)\tcltk64</tcltkDir>
+  </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
       <BufferSecurityCheck>false</BufferSecurityCheck>
@@ -16,5 +19,8 @@
     <BuildMacro Include="PythonExe">
       <Value>$(PythonExe)</Value>
     </BuildMacro>
+    <BuildMacro Include="tcltkDir">
+      <Value>$(tcltkDir)</Value>
+    </BuildMacro>
   </ItemGroup>
-</Project>
+</Project>
+\ No newline at end of file