bpo-30389 Adds detection of VS 2017 to distutils._msvccompiler (#1632)

16 files changed, 1272 insertions, 110 deletions

diff --git a/Include/pyatomic.h b/Include/pyatomic.h
index 4cbc529..bd516b8 100644
--- a/Include/pyatomic.h
+++ b/Include/pyatomic.h
@@ -285,20 +285,20 @@ typedef struct _Py_atomic_int {
     a uintptr_t it will do an unsigned compare and crash
 */
 inline intptr_t _Py_atomic_load_64bit(volatile uintptr_t* value, int order) {
-    uintptr_t old;
+    __int64 old;
     switch (order) {
     case _Py_memory_order_acquire:
     {
       do {
         old = *value;
-      } while(_InterlockedCompareExchange64_HLEAcquire(value, old, old) != old);
+      } while(_InterlockedCompareExchange64_HLEAcquire((volatile __int64*)value, old, old) != old);
       break;
     }
     case _Py_memory_order_release:
     {
       do {
         old = *value;
-      } while(_InterlockedCompareExchange64_HLERelease(value, old, old) != old);
+      } while(_InterlockedCompareExchange64_HLERelease((volatile __int64*)value, old, old) != old);
       break;
     }
     case _Py_memory_order_relaxed:
@@ -308,7 +308,7 @@ inline intptr_t _Py_atomic_load_64bit(volatile uintptr_t* value, int order) {
     {
       do {
         old = *value;
-      } while(_InterlockedCompareExchange64(value, old, old) != old);
+      } while(_InterlockedCompareExchange64((volatile __int64*)value, old, old) != old);
       break;
     }
     }
@@ -320,20 +320,20 @@ inline intptr_t _Py_atomic_load_64bit(volatile uintptr_t* value, int order) {
 #endif
 
 inline int _Py_atomic_load_32bit(volatile int* value, int order) {
-    int old;
+    long old;
     switch (order) {
     case _Py_memory_order_acquire:
     {
       do {
         old = *value;
-      } while(_InterlockedCompareExchange_HLEAcquire(value, old, old) != old);
+      } while(_InterlockedCompareExchange_HLEAcquire((volatile long*)value, old, old) != old);
       break;
     }
     case _Py_memory_order_release:
     {
       do {
         old = *value;
-      } while(_InterlockedCompareExchange_HLERelease(value, old, old) != old);
+      } while(_InterlockedCompareExchange_HLERelease((volatile long*)value, old, old) != old);
       break;
     }
     case _Py_memory_order_relaxed:
@@ -343,7 +343,7 @@ inline int _Py_atomic_load_32bit(volatile int* value, int order) {
     {
       do {
         old = *value;
-      } while(_InterlockedCompareExchange(value, old, old) != old);
+      } while(_InterlockedCompareExchange((volatile long*)value, old, old) != old);
       break;
     }
     }
diff --git a/Lib/distutils/_msvccompiler.py b/Lib/distutils/_msvccompiler.py
index b120273..ef1356b 100644
--- a/Lib/distutils/_msvccompiler.py
+++ b/Lib/distutils/_msvccompiler.py
@@ -17,6 +17,7 @@ import os
 import shutil
 import stat
 import subprocess
+import winreg
 
 from distutils.errors import DistutilsExecError, DistutilsPlatformError, \
                              CompileError, LibError, LinkError
@@ -24,10 +25,9 @@ from distutils.ccompiler import CCompiler, gen_lib_options
 from distutils import log
 from distutils.util import get_platform
 
-import winreg
 from itertools import count
 
-def _find_vcvarsall(plat_spec):
+def _find_vc2015():
     try:
         key = winreg.OpenKeyEx(
             winreg.HKEY_LOCAL_MACHINE,
@@ -38,9 +38,9 @@ def _find_vcvarsall(plat_spec):
         log.debug("Visual C++ is not registered")
         return None, None
 
+    best_version = 0
+    best_dir = None
     with key:
-        best_version = 0
-        best_dir = None
         for i in count():
             try:
                 v, vc_dir, vt = winreg.EnumValue(key, i)
@@ -53,25 +53,74 @@ def _find_vcvarsall(plat_spec):
                     continue
                 if version >= 14 and version > best_version:
                     best_version, best_dir = version, vc_dir
-        if not best_version:
-            log.debug("No suitable Visual C++ version found")
-            return None, None
+    return best_version, best_dir
+
+def _find_vc2017():
+    import _findvs
+    import threading
+
+    best_version = 0,   # tuple for full version comparisons
+    best_dir = None
+
+    # We need to call findall() on its own thread because it will
+    # initialize COM.
+    all_packages = []
+    def _getall():
+        all_packages.extend(_findvs.findall())
+    t = threading.Thread(target=_getall)
+    t.start()
+    t.join()
+
+    for name, version_str, path, packages in all_packages:
+        if 'Microsoft.VisualStudio.Component.VC.Tools.x86.x64' in packages:
+            vc_dir = os.path.join(path, 'VC', 'Auxiliary', 'Build')
+            if not os.path.isdir(vc_dir):
+                continue
+            try:
+                version = tuple(int(i) for i in version_str.split('.'))
+            except (ValueError, TypeError):
+                continue
+            if version > best_version:
+                best_version, best_dir = version, vc_dir
+    try:
+        best_version = best_version[0]
+    except IndexError:
+        best_version = None
+    return best_version, best_dir
 
-        vcvarsall = os.path.join(best_dir, "vcvarsall.bat")
-        if not os.path.isfile(vcvarsall):
-            log.debug("%s cannot be found", vcvarsall)
-            return None, None
+def _find_vcvarsall(plat_spec):
+    best_version, best_dir = _find_vc2017()
+    vcruntime = None
+    vcruntime_plat = 'x64' if 'amd64' in plat_spec else 'x86'
+    if best_version:
+        vcredist = os.path.join(best_dir, "..", "..", "redist", "MSVC", "**",
+            "Microsoft.VC141.CRT", "vcruntime140.dll")
+        try:
+            import glob
+            vcruntime = glob.glob(vcredist, recursive=True)[-1]
+        except (ImportError, OSError, LookupError):
+            vcruntime = None
+
+    if not best_version:
+        best_version, best_dir = _find_vc2015()
+        if best_version:
+            vcruntime = os.path.join(best_dir, 'redist', vcruntime_plat,
+                "Microsoft.VC140.CRT", "vcruntime140.dll")
+
+    if not best_version:
+        log.debug("No suitable Visual C++ version found")
+        return None, None
 
+    vcvarsall = os.path.join(best_dir, "vcvarsall.bat")
+    if not os.path.isfile(vcvarsall):
+        log.debug("%s cannot be found", vcvarsall)
+        return None, None
+
+    if not vcruntime or not os.path.isfile(vcruntime):
+        log.debug("%s cannot be found", vcruntime)
         vcruntime = None
-        vcruntime_spec = _VCVARS_PLAT_TO_VCRUNTIME_REDIST.get(plat_spec)
-        if vcruntime_spec:
-            vcruntime = os.path.join(best_dir,
-                vcruntime_spec.format(best_version))
-            if not os.path.isfile(vcruntime):
-                log.debug("%s cannot be found", vcruntime)
-                vcruntime = None
 
-        return vcvarsall, vcruntime
+    return vcvarsall, vcruntime
 
 def _get_vc_env(plat_spec):
     if os.getenv("DISTUTILS_USE_SDK"):
@@ -130,14 +179,6 @@ PLAT_TO_VCVARS = {
     'win-amd64' : 'x86_amd64',
 }
 
-# A map keyed by get_platform() return values to the file under
-# the VC install directory containing the vcruntime redistributable.
-_VCVARS_PLAT_TO_VCRUNTIME_REDIST = {
-    'x86' : 'redist\\x86\\Microsoft.VC{0}0.CRT\\vcruntime{0}0.dll',
-    'amd64' : 'redist\\x64\\Microsoft.VC{0}0.CRT\\vcruntime{0}0.dll',
-    'x86_amd64' : 'redist\\x64\\Microsoft.VC{0}0.CRT\\vcruntime{0}0.dll',
-}
-
 # A set containing the DLLs that are guaranteed to be available for
 # all micro versions of this Python version. Known extension
 # dependencies that are not in this set will be copied to the output
diff --git a/Lib/distutils/tests/test_msvccompiler.py b/Lib/distutils/tests/test_msvccompiler.py
index 4dc2488..70a9c93 100644
--- a/Lib/distutils/tests/test_msvccompiler.py
+++ b/Lib/distutils/tests/test_msvccompiler.py
@@ -76,12 +76,12 @@ class msvccompilerTestCase(support.TempdirManager,
         compiler = _msvccompiler.MSVCCompiler()
         compiler.initialize()
         dll = compiler._vcruntime_redist
-        self.assertTrue(os.path.isfile(dll))
+        self.assertTrue(os.path.isfile(dll), dll or "<None>")
 
         compiler._copy_vcruntime(tempdir)
 
         self.assertFalse(os.path.isfile(os.path.join(
-            tempdir, os.path.basename(dll))))
+            tempdir, os.path.basename(dll))), dll or "<None>")
 
     def test_get_vc_env_unicode(self):
         import distutils._msvccompiler as _msvccompiler
@@ -101,6 +101,30 @@ class msvccompilerTestCase(support.TempdirManager,
             if old_distutils_use_sdk:
                 os.environ['DISTUTILS_USE_SDK'] = old_distutils_use_sdk
 
+    def test_get_vc2017(self):
+        import distutils._msvccompiler as _msvccompiler
+
+        # This function cannot be mocked, so pass it if we find VS 2017
+        # and mark it skipped if we do not.
+        version, path = _msvccompiler._find_vc2017()
+        if version:
+            self.assertGreaterEqual(version, 15)
+            self.assertTrue(os.path.isdir(path))
+        else:
+            raise unittest.SkipTest("VS 2017 is not installed")
+
+    def test_get_vc2015(self):
+        import distutils._msvccompiler as _msvccompiler
+
+        # This function cannot be mocked, so pass it if we find VS 2015
+        # and mark it skipped if we do not.
+        version, path = _msvccompiler._find_vc2015()
+        if version:
+            self.assertGreaterEqual(version, 14)
+            self.assertTrue(os.path.isdir(path))
+        else:
+            raise unittest.SkipTest("VS 2015 is not installed")
+
 def test_suite():
     return unittest.makeSuite(msvccompilerTestCase)
 
diff --git a/Misc/NEWS.d/next/Windows/2017-09-06-17-14-54.bpo-30389.9Dizrx.rst b/Misc/NEWS.d/next/Windows/2017-09-06-17-14-54.bpo-30389.9Dizrx.rst
new file mode 100644
index 0000000..7c72e31
--- /dev/null
+++ b/Misc/NEWS.d/next/Windows/2017-09-06-17-14-54.bpo-30389.9Dizrx.rst
@@ -0,0 +1 @@
+Adds detection of Visual Studio 2017 to distutils on Windows.
diff --git a/PC/_findvs.cpp b/PC/_findvs.cpp
new file mode 100644
index 0000000..6c66011
--- /dev/null
+++ b/PC/_findvs.cpp
@@ -0,0 +1,255 @@
+//
+// Helper library for location Visual Studio installations
+// using the COM-based query API.
+//
+// Copyright (c) Microsoft Corporation
+// Licensed to PSF under a contributor agreement
+//
+
+// Version history
+//  2017-05: Initial contribution (Steve Dower)
+
+#include <Windows.h>
+#include <Strsafe.h>
+#include "external\include\Setup.Configuration.h"
+#pragma comment(lib, "ole32.lib")
+#pragma comment(lib, "oleaut32.lib")
+#pragma comment(lib, "version.lib")
+#pragma comment(lib, "Microsoft.VisualStudio.Setup.Configuration.Native.lib")
+
+#include <Python.h>
+
+static PyObject *error_from_hr(HRESULT hr)
+{
+    if (FAILED(hr))
+        PyErr_Format(PyExc_OSError, "Error %08x", hr);
+    assert(PyErr_Occurred());
+    return nullptr;
+}
+
+static PyObject *get_install_name(ISetupInstance2 *inst)
+{
+    HRESULT hr;
+    BSTR name;
+    PyObject *str = nullptr;
+    if (FAILED(hr = inst->GetDisplayName(LOCALE_USER_DEFAULT, &name)))
+        goto error;
+    str = PyUnicode_FromWideChar(name, SysStringLen(name));
+    SysFreeString(name);
+    return str;
+error:
+
+    return error_from_hr(hr);
+}
+
+static PyObject *get_install_version(ISetupInstance *inst)
+{
+    HRESULT hr;
+    BSTR ver;
+    PyObject *str = nullptr;
+    if (FAILED(hr = inst->GetInstallationVersion(&ver)))
+        goto error;
+    str = PyUnicode_FromWideChar(ver, SysStringLen(ver));
+    SysFreeString(ver);
+    return str;
+error:
+
+    return error_from_hr(hr);
+}
+
+static PyObject *get_install_path(ISetupInstance *inst)
+{
+    HRESULT hr;
+    BSTR path;
+    PyObject *str = nullptr;
+    if (FAILED(hr = inst->GetInstallationPath(&path)))
+        goto error;
+    str = PyUnicode_FromWideChar(path, SysStringLen(path));
+    SysFreeString(path);
+    return str;
+error:
+
+    return error_from_hr(hr);
+}
+
+static PyObject *get_installed_packages(ISetupInstance2 *inst)
+{
+    HRESULT hr;
+    PyObject *res = nullptr;
+    LPSAFEARRAY sa_packages = nullptr;
+    LONG ub = 0;
+    IUnknown **packages = nullptr;
+    PyObject *str = nullptr;
+
+    if (FAILED(hr = inst->GetPackages(&sa_packages)) ||
+        FAILED(hr = SafeArrayAccessData(sa_packages, (void**)&packages)) ||
+        FAILED(SafeArrayGetUBound(sa_packages, 1, &ub)) ||
+        !(res = PyList_New(0)))
+        goto error;
+
+    for (LONG i = 0; i < ub; ++i) {
+        ISetupPackageReference *package = nullptr;
+        BSTR id = nullptr;
+        PyObject *str = nullptr;
+
+        if (FAILED(hr = packages[i]->QueryInterface(&package)) ||
+            FAILED(hr = package->GetId(&id)))
+            goto iter_error;
+
+        str = PyUnicode_FromWideChar(id, SysStringLen(id));
+        SysFreeString(id);
+
+        if (!str || PyList_Append(res, str) < 0)
+            goto iter_error;
+
+        Py_CLEAR(str);
+        package->Release();
+        continue;
+
+    iter_error:
+        if (package) package->Release();
+        Py_XDECREF(str);
+
+        goto error;
+    }
+
+    SafeArrayUnaccessData(sa_packages);
+    SafeArrayDestroy(sa_packages);
+
+    return res;
+error:
+    if (sa_packages && packages) SafeArrayUnaccessData(sa_packages);
+    if (sa_packages) SafeArrayDestroy(sa_packages);
+    Py_XDECREF(res);
+
+    return error_from_hr(hr);
+}
+
+static PyObject *find_all_instances()
+{
+    ISetupConfiguration *sc = nullptr;
+    ISetupConfiguration2 *sc2 = nullptr;
+    IEnumSetupInstances *enm = nullptr;
+    ISetupInstance *inst = nullptr;
+    ISetupInstance2 *inst2 = nullptr;
+    PyObject *res = nullptr;
+    ULONG fetched;
+    HRESULT hr;
+
+    if (!(res = PyList_New(0)))
+        goto error;
+
+    if (FAILED(hr = CoCreateInstance(
+        __uuidof(SetupConfiguration),
+        NULL,
+        CLSCTX_INPROC_SERVER,
+        __uuidof(ISetupConfiguration),
+        (LPVOID*)&sc
+    )) && hr != REGDB_E_CLASSNOTREG)
+        goto error;
+
+    // If the class is not registered, there are no VS instances installed
+    if (hr == REGDB_E_CLASSNOTREG)
+        return res;
+
+    if (FAILED(hr = sc->QueryInterface(&sc2)) ||
+        FAILED(hr = sc2->EnumAllInstances(&enm)))
+        goto error;
+
+    while (SUCCEEDED(enm->Next(1, &inst, &fetched)) && fetched) {
+        PyObject *name = nullptr;
+        PyObject *version = nullptr;
+        PyObject *path = nullptr;
+        PyObject *packages = nullptr;
+
+        if (FAILED(hr = inst->QueryInterface(&inst2)) ||
+            !(name = get_install_name(inst2)) ||
+            !(version = get_install_version(inst)) ||
+            !(path = get_install_path(inst)) ||
+            !(packages = get_installed_packages(inst2)) ||
+            PyList_Append(res, PyTuple_Pack(4, name, version, path, packages)) < 0)
+            goto iter_error;
+
+        continue;
+    iter_error:
+        if (inst2) inst2->Release();
+        Py_XDECREF(packages);
+        Py_XDECREF(path);
+        Py_XDECREF(version);
+        Py_XDECREF(name);
+        goto error;
+    }
+
+    enm->Release();
+    sc2->Release();
+    sc->Release();
+    return res;
+
+error:
+    if (enm) enm->Release();
+    if (sc2) sc2->Release();
+    if (sc) sc->Release();
+    Py_XDECREF(res);
+
+    return error_from_hr(hr);
+}
+
+PyDoc_STRVAR(findvs_findall_doc, "findall()\
+\
+Finds all installed versions of Visual Studio.\
+\
+This function will initialize COM temporarily. To avoid impact on other parts\
+of your application, use a new thread to make this call.");
+
+static PyObject *findvs_findall(PyObject *self, PyObject *args, PyObject *kwargs)
+{
+    HRESULT hr = CoInitializeEx(nullptr, COINIT_MULTITHREADED);
+    if (hr == RPC_E_CHANGED_MODE)
+        hr = CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
+    if (FAILED(hr))
+        return error_from_hr(hr);
+    PyObject *res = find_all_instances();
+    CoUninitialize();
+    return res;
+}
+
+// List of functions to add to findvs in exec_findvs().
+static PyMethodDef findvs_functions[] = {
+    { "findall", (PyCFunction)findvs_findall, METH_VARARGS | METH_KEYWORDS, findvs_findall_doc },
+    { NULL, NULL, 0, NULL }
+};
+
+// Initialize findvs. May be called multiple times, so avoid
+// using static state.
+static int exec_findvs(PyObject *module)
+{
+    PyModule_AddFunctions(module, findvs_functions);
+
+    return 0; // success
+}
+
+PyDoc_STRVAR(findvs_doc, "The _findvs helper module");
+
+static PyModuleDef_Slot findvs_slots[] = {
+    { Py_mod_exec, exec_findvs },
+    { 0, NULL }
+};
+
+static PyModuleDef findvs_def = {
+    PyModuleDef_HEAD_INIT,
+    "_findvs",
+    findvs_doc,
+    0,              // m_size
+    NULL,           // m_methods
+    findvs_slots,
+    NULL,           // m_traverse
+    NULL,           // m_clear
+    NULL,           // m_free
+};
+
+extern "C" {
+    PyMODINIT_FUNC PyInit__findvs(void)
+    {
+        return PyModuleDef_Init(&findvs_def);
+    }
+}
\ No newline at end of file
diff --git a/PC/config.c b/PC/config.c
index f14e068..699e1d0 100644
--- a/PC/config.c
+++ b/PC/config.c
@@ -1,7 +1,7 @@
 /* Module configuration */
 
 /* This file contains the table of built-in modules.
-   See create_builtin() in import.c. */
+    See create_builtin() in import.c. */
 
 #include "Python.h"
 
@@ -69,6 +69,7 @@ extern PyObject* _PyWarnings_Init(void);
 extern PyObject* PyInit__string(void);
 extern PyObject* PyInit__stat(void);
 extern PyObject* PyInit__opcode(void);
+extern PyObject* PyInit__findvs(void);
 
 /* tools/freeze/makeconfig.py marker for additional "extern" */
 /* -- ADDMODULE MARKER 1 -- */
@@ -161,6 +162,8 @@ struct _inittab _PyImport_Inittab[] = {
     {"_stat", PyInit__stat},
     {"_opcode", PyInit__opcode},
 
+    {"_findvs", PyInit__findvs},
+
     /* Sentinel */
     {0, 0}
 };
diff --git a/PC/external/Externals.txt b/PC/external/Externals.txt
new file mode 100644
index 0000000..618fe16
--- /dev/null
+++ b/PC/external/Externals.txt
@@ -0,0 +1,3 @@
+The files in this folder are from the Microsoft.VisualStudio.Setup.Configuration.Native package on Nuget.
+
+They are licensed under the MIT license.
diff --git a/PC/external/include/Setup.Configuration.h b/PC/external/include/Setup.Configuration.h
new file mode 100644
index 0000000..1fb3187
--- /dev/null
+++ b/PC/external/include/Setup.Configuration.h
@@ -0,0 +1,827 @@
+// The MIT License(MIT)
+// Copyright(C) Microsoft Corporation.All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files(the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions :
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+#pragma once
+
+// Constants
+//
+#ifndef E_NOTFOUND
+#define E_NOTFOUND HRESULT_FROM_WIN32(ERROR_NOT_FOUND)
+#endif
+
+#ifndef E_FILENOTFOUND
+#define E_FILENOTFOUND HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND)
+#endif
+
+#ifndef E_NOTSUPPORTED
+#define E_NOTSUPPORTED HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED)
+#endif
+
+// Enumerations
+//
+/// <summary>
+/// The state of an instance.
+/// </summary>
+enum InstanceState
+{
+    /// <summary>
+    /// The instance state has not been determined.
+    /// </summary>
+    eNone = 0,
+
+    /// <summary>
+    /// The instance installation path exists.
+    /// </summary>
+    eLocal = 1,
+
+    /// <summary>
+    /// A product is registered to the instance.
+    /// </summary>
+    eRegistered = 2,
+
+    /// <summary>
+    /// No reboot is required for the instance.
+    /// </summary>
+    eNoRebootRequired = 4,
+
+    /// <summary>
+    /// No errors were reported for the instance.
+    /// </summary>
+    eNoErrors = 8,
+
+    /// <summary>
+    /// The instance represents a complete install.
+    /// </summary>
+    eComplete = MAXUINT,
+};
+
+// Forward interface declarations
+//
+#ifndef __ISetupInstance_FWD_DEFINED__
+#define __ISetupInstance_FWD_DEFINED__
+typedef struct ISetupInstance ISetupInstance;
+#endif
+
+#ifndef __ISetupInstance2_FWD_DEFINED__
+#define __ISetupInstance2_FWD_DEFINED__
+typedef struct ISetupInstance2 ISetupInstance2;
+#endif
+
+#ifndef __ISetupLocalizedProperties_FWD_DEFINED__
+#define __ISetupLocalizedProperties_FWD_DEFINED__
+typedef struct ISetupLocalizedProperties ISetupLocalizedProperties;
+#endif
+
+#ifndef __IEnumSetupInstances_FWD_DEFINED__
+#define __IEnumSetupInstances_FWD_DEFINED__
+typedef struct IEnumSetupInstances IEnumSetupInstances;
+#endif
+
+#ifndef __ISetupConfiguration_FWD_DEFINED__
+#define __ISetupConfiguration_FWD_DEFINED__
+typedef struct ISetupConfiguration ISetupConfiguration;
+#endif
+
+#ifndef __ISetupConfiguration2_FWD_DEFINED__
+#define __ISetupConfiguration2_FWD_DEFINED__
+typedef struct ISetupConfiguration2 ISetupConfiguration2;
+#endif
+
+#ifndef __ISetupPackageReference_FWD_DEFINED__
+#define __ISetupPackageReference_FWD_DEFINED__
+typedef struct ISetupPackageReference ISetupPackageReference;
+#endif
+
+#ifndef __ISetupHelper_FWD_DEFINED__
+#define __ISetupHelper_FWD_DEFINED__
+typedef struct ISetupHelper ISetupHelper;
+#endif
+
+#ifndef __ISetupErrorState_FWD_DEFINED__
+#define __ISetupErrorState_FWD_DEFINED__
+typedef struct ISetupErrorState ISetupErrorState;
+#endif
+
+#ifndef __ISetupErrorState2_FWD_DEFINED__
+#define __ISetupErrorState2_FWD_DEFINED__
+typedef struct ISetupErrorState2 ISetupErrorState2;
+#endif
+
+#ifndef __ISetupFailedPackageReference_FWD_DEFINED__
+#define __ISetupFailedPackageReference_FWD_DEFINED__
+typedef struct ISetupFailedPackageReference ISetupFailedPackageReference;
+#endif
+
+#ifndef __ISetupFailedPackageReference2_FWD_DEFINED__
+#define __ISetupFailedPackageReference2_FWD_DEFINED__
+typedef struct ISetupFailedPackageReference2 ISetupFailedPackageReference2;
+#endif
+
+#ifndef __ISetupPropertyStore_FWD_DEFINED__
+#define __ISetupPropertyStore_FWD_DEFINED__
+typedef struct ISetupPropertyStore ISetupPropertyStore;
+#endif
+
+#ifndef __ISetupLocalizedPropertyStore_FWD_DEFINED__
+#define __ISetupLocalizedPropertyStore_FWD_DEFINED__
+typedef struct ISetupLocalizedPropertyStore ISetupLocalizedPropertyStore;
+#endif
+
+// Forward class declarations
+//
+#ifndef __SetupConfiguration_FWD_DEFINED__
+#define __SetupConfiguration_FWD_DEFINED__
+
+#ifdef __cplusplus
+typedef class SetupConfiguration SetupConfiguration;
+#endif
+
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Interface definitions
+//
+EXTERN_C const IID IID_ISetupInstance;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Information about an instance of a product.
+/// </summary>
+struct DECLSPEC_UUID("B41463C3-8866-43B5-BC33-2B0676F7F42E") DECLSPEC_NOVTABLE ISetupInstance : public IUnknown
+{
+    /// <summary>
+    /// Gets the instance identifier (should match the name of the parent instance directory).
+    /// </summary>
+    /// <param name="pbstrInstanceId">The instance identifier.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetInstanceId)(
+        _Out_ BSTR* pbstrInstanceId
+        ) = 0;
+
+    /// <summary>
+    /// Gets the local date and time when the installation was originally installed.
+    /// </summary>
+    /// <param name="pInstallDate">The local date and time when the installation was originally installed.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetInstallDate)(
+        _Out_ LPFILETIME pInstallDate
+        ) = 0;
+
+    /// <summary>
+    /// Gets the unique name of the installation, often indicating the branch and other information used for telemetry.
+    /// </summary>
+    /// <param name="pbstrInstallationName">The unique name of the installation, often indicating the branch and other information used for telemetry.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetInstallationName)(
+        _Out_ BSTR* pbstrInstallationName
+        ) = 0;
+
+    /// <summary>
+    /// Gets the path to the installation root of the product.
+    /// </summary>
+    /// <param name="pbstrInstallationPath">The path to the installation root of the product.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetInstallationPath)(
+        _Out_ BSTR* pbstrInstallationPath
+        ) = 0;
+
+    /// <summary>
+    /// Gets the version of the product installed in this instance.
+    /// </summary>
+    /// <param name="pbstrInstallationVersion">The version of the product installed in this instance.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetInstallationVersion)(
+        _Out_ BSTR* pbstrInstallationVersion
+        ) = 0;
+
+    /// <summary>
+    /// Gets the display name (title) of the product installed in this instance.
+    /// </summary>
+    /// <param name="lcid">The LCID for the display name.</param>
+    /// <param name="pbstrDisplayName">The display name (title) of the product installed in this instance.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetDisplayName)(
+        _In_ LCID lcid,
+        _Out_ BSTR* pbstrDisplayName
+        ) = 0;
+
+    /// <summary>
+    /// Gets the description of the product installed in this instance.
+    /// </summary>
+    /// <param name="lcid">The LCID for the description.</param>
+    /// <param name="pbstrDescription">The description of the product installed in this instance.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetDescription)(
+        _In_ LCID lcid,
+        _Out_ BSTR* pbstrDescription
+        ) = 0;
+
+    /// <summary>
+    /// Resolves the optional relative path to the root path of the instance.
+    /// </summary>
+    /// <param name="pwszRelativePath">A relative path within the instance to resolve, or NULL to get the root path.</param>
+    /// <param name="pbstrAbsolutePath">The full path to the optional relative path within the instance. If the relative path is NULL, the root path will always terminate in a backslash.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(ResolvePath)(
+        _In_opt_z_ LPCOLESTR pwszRelativePath,
+        _Out_ BSTR* pbstrAbsolutePath
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupInstance2;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Information about an instance of a product.
+/// </summary>
+struct DECLSPEC_UUID("89143C9A-05AF-49B0-B717-72E218A2185C") DECLSPEC_NOVTABLE ISetupInstance2 : public ISetupInstance
+{
+    /// <summary>
+    /// Gets the state of the instance.
+    /// </summary>
+    /// <param name="pState">The state of the instance.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetState)(
+        _Out_ InstanceState* pState
+        ) = 0;
+
+    /// <summary>
+    /// Gets an array of package references registered to the instance.
+    /// </summary>
+    /// <param name="ppsaPackages">Pointer to an array of <see cref="ISetupPackageReference"/>.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the packages property is not defined.</returns>
+    STDMETHOD(GetPackages)(
+        _Out_ LPSAFEARRAY* ppsaPackages
+        ) = 0;
+
+    /// <summary>
+    /// Gets a pointer to the <see cref="ISetupPackageReference"/> that represents the registered product.
+    /// </summary>
+    /// <param name="ppPackage">Pointer to an instance of <see cref="ISetupPackageReference"/>. This may be NULL if <see cref="GetState"/> does not return <see cref="eComplete"/>.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the packages property is not defined.</returns>
+    STDMETHOD(GetProduct)(
+        _Outptr_result_maybenull_ ISetupPackageReference** ppPackage
+        ) = 0;
+
+    /// <summary>
+    /// Gets the relative path to the product application, if available.
+    /// </summary>
+    /// <param name="pbstrProductPath">The relative path to the product application, if available.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetProductPath)(
+        _Outptr_result_maybenull_ BSTR* pbstrProductPath
+        ) = 0;
+
+    /// <summary>
+    /// Gets the error state of the instance, if available.
+    /// </summary>
+    /// <param name="pErrorState">The error state of the instance, if available.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetErrors)(
+        _Outptr_result_maybenull_ ISetupErrorState** ppErrorState
+        ) = 0;
+
+    /// <summary>
+    /// Gets a value indicating whether the instance can be launched.
+    /// </summary>
+    /// <param name="pfIsLaunchable">Whether the instance can be launched.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    /// <remarks>
+    /// An instance could have had errors during install but still be launched. Some features may not work correctly, but others will.
+    /// </remarks>
+    STDMETHOD(IsLaunchable)(
+        _Out_ VARIANT_BOOL* pfIsLaunchable
+        ) = 0;
+
+    /// <summary>
+    /// Gets a value indicating whether the instance is complete.
+    /// </summary>
+    /// <param name="pfIsLaunchable">Whether the instance is complete.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    /// <remarks>
+    /// An instance is complete if it had no errors during install, resume, or repair.
+    /// </remarks>
+    STDMETHOD(IsComplete)(
+        _Out_ VARIANT_BOOL* pfIsComplete
+        ) = 0;
+
+    /// <summary>
+    /// Gets product-specific properties.
+    /// </summary>
+    /// <param name="ppPropeties">A pointer to an instance of <see cref="ISetupPropertyStore"/>. This may be NULL if no properties are defined.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetProperties)(
+        _Outptr_result_maybenull_ ISetupPropertyStore** ppProperties
+        ) = 0;
+
+    /// <summary>
+    /// Gets the directory path to the setup engine that installed the instance.
+    /// </summary>
+    /// <param name="pbstrEnginePath">The directory path to the setup engine that installed the instance.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetEnginePath)(
+        _Outptr_result_maybenull_ BSTR* pbstrEnginePath
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupLocalizedProperties;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Provides localized properties of an instance of a product.
+/// </summary>
+struct DECLSPEC_UUID("F4BD7382-FE27-4AB4-B974-9905B2A148B0") DECLSPEC_NOVTABLE ISetupLocalizedProperties : public IUnknown
+{
+    /// <summary>
+    /// Gets localized product-specific properties.
+    /// </summary>
+    /// <param name="ppLocalizedProperties">A pointer to an instance of <see cref="ISetupLocalizedPropertyStore"/>. This may be NULL if no properties are defined.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetLocalizedProperties)(
+        _Outptr_result_maybenull_ ISetupLocalizedPropertyStore** ppLocalizedProperties
+    ) = 0;
+
+    /// <summary>
+    /// Gets localized channel-specific properties.
+    /// </summary>
+    /// <param name="ppLocalizedChannelProperties">A pointer to an instance of <see cref="ISetupLocalizedPropertyStore"/>. This may be NULL if no channel properties are defined.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetLocalizedChannelProperties)(
+        _Outptr_result_maybenull_ ISetupLocalizedPropertyStore** ppLocalizedChannelProperties
+    ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_IEnumSetupInstances;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// An enumerator of installed <see cref="ISetupInstance"/> objects.
+/// </summary>
+struct DECLSPEC_UUID("6380BCFF-41D3-4B2E-8B2E-BF8A6810C848") DECLSPEC_NOVTABLE IEnumSetupInstances : public IUnknown
+{
+    /// <summary>
+    /// Retrieves the next set of product instances in the enumeration sequence.
+    /// </summary>
+    /// <param name="celt">The number of product instances to retrieve.</param>
+    /// <param name="rgelt">A pointer to an array of <see cref="ISetupInstance"/>.</param>
+    /// <param name="pceltFetched">A pointer to the number of product instances retrieved. If <paramref name="celt"/> is 1 this parameter may be NULL.</param>
+    /// <returns>S_OK if the number of elements were fetched, S_FALSE if nothing was fetched (at end of enumeration), E_INVALIDARG if <paramref name="celt"/> is greater than 1 and pceltFetched is NULL, or E_OUTOFMEMORY if an <see cref="ISetupInstance"/> could not be allocated.</returns>
+    STDMETHOD(Next)(
+        _In_ ULONG celt,
+        _Out_writes_to_(celt, *pceltFetched) ISetupInstance** rgelt,
+        _Out_opt_ _Deref_out_range_(0, celt) ULONG* pceltFetched
+        ) = 0;
+
+    /// <summary>
+    /// Skips the next set of product instances in the enumeration sequence.
+    /// </summary>
+    /// <param name="celt">The number of product instances to skip.</param>
+    /// <returns>S_OK if the number of elements could be skipped; otherwise, S_FALSE;</returns>
+    STDMETHOD(Skip)(
+        _In_ ULONG celt
+        ) = 0;
+
+    /// <summary>
+    /// Resets the enumeration sequence to the beginning.
+    /// </summary>
+    /// <returns>Always returns S_OK;</returns>
+    STDMETHOD(Reset)(void) = 0;
+
+    /// <summary>
+    /// Creates a new enumeration object in the same state as the current enumeration object: the new object points to the same place in the enumeration sequence.
+    /// </summary>
+    /// <param name="ppenum">A pointer to a pointer to a new <see cref="IEnumSetupInstances"/> interface. If the method fails, this parameter is undefined.</param>
+    /// <returns>S_OK if a clone was returned; otherwise, E_OUTOFMEMORY.</returns>
+    STDMETHOD(Clone)(
+        _Deref_out_opt_ IEnumSetupInstances** ppenum
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupConfiguration;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Gets information about product instances installed on the machine.
+/// </summary>
+struct DECLSPEC_UUID("42843719-DB4C-46C2-8E7C-64F1816EFD5B") DECLSPEC_NOVTABLE ISetupConfiguration : public IUnknown
+{
+    /// <summary>
+    /// Enumerates all launchable product instances installed.
+    /// </summary>
+    /// <param name="ppEnumInstances">An enumeration of completed, installed product instances.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(EnumInstances)(
+        _Out_ IEnumSetupInstances** ppEnumInstances
+        ) = 0;
+
+    /// <summary>
+    /// Gets the instance for the current process path.
+    /// </summary>
+    /// <param name="ppInstance">The instance for the current process path.</param>
+    /// <returns>
+    /// The instance for the current process path, or E_NOTFOUND if not found.
+    /// The <see cref="ISetupInstance::GetState"/> may indicate the instance is invalid.
+    /// </returns>
+    /// <remarks>
+    /// The returned instance may not be launchable.
+    /// </remarks>
+STDMETHOD(GetInstanceForCurrentProcess)(
+        _Out_ ISetupInstance** ppInstance
+        ) = 0;
+
+    /// <summary>
+    /// Gets the instance for the given path.
+    /// </summary>
+    /// <param name="ppInstance">The instance for the given path.</param>
+    /// <returns>
+    /// The instance for the given path, or E_NOTFOUND if not found.
+    /// The <see cref="ISetupInstance::GetState"/> may indicate the instance is invalid.
+    /// </returns>
+    /// <remarks>
+    /// The returned instance may not be launchable.
+    /// </remarks>
+STDMETHOD(GetInstanceForPath)(
+        _In_z_ LPCWSTR wzPath,
+        _Out_ ISetupInstance** ppInstance
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupConfiguration2;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Gets information about product instances.
+/// </summary>
+struct DECLSPEC_UUID("26AAB78C-4A60-49D6-AF3B-3C35BC93365D") DECLSPEC_NOVTABLE ISetupConfiguration2 : public ISetupConfiguration
+{
+    /// <summary>
+    /// Enumerates all product instances.
+    /// </summary>
+    /// <param name="ppEnumInstances">An enumeration of all product instances.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(EnumAllInstances)(
+        _Out_ IEnumSetupInstances** ppEnumInstances
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupPackageReference;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// A reference to a package.
+/// </summary>
+struct DECLSPEC_UUID("da8d8a16-b2b6-4487-a2f1-594ccccd6bf5") DECLSPEC_NOVTABLE ISetupPackageReference : public IUnknown
+{
+    /// <summary>
+    /// Gets the general package identifier.
+    /// </summary>
+    /// <param name="pbstrId">The general package identifier.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetId)(
+        _Out_ BSTR* pbstrId
+        ) = 0;
+
+    /// <summary>
+    /// Gets the version of the package.
+    /// </summary>
+    /// <param name="pbstrVersion">The version of the package.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetVersion)(
+        _Out_ BSTR* pbstrVersion
+        ) = 0;
+
+    /// <summary>
+    /// Gets the target process architecture of the package.
+    /// </summary>
+    /// <param name="pbstrChip">The target process architecture of the package.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetChip)(
+        _Out_ BSTR* pbstrChip
+        ) = 0;
+
+    /// <summary>
+    /// Gets the language and optional region identifier.
+    /// </summary>
+    /// <param name="pbstrLanguage">The language and optional region identifier.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetLanguage)(
+        _Out_ BSTR* pbstrLanguage
+        ) = 0;
+
+    /// <summary>
+    /// Gets the build branch of the package.
+    /// </summary>
+    /// <param name="pbstrBranch">The build branch of the package.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetBranch)(
+        _Out_ BSTR* pbstrBranch
+        ) = 0;
+
+    /// <summary>
+    /// Gets the type of the package.
+    /// </summary>
+    /// <param name="pbstrType">The type of the package.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetType)(
+        _Out_ BSTR* pbstrType
+        ) = 0;
+
+    /// <summary>
+    /// Gets the unique identifier consisting of all defined tokens.
+    /// </summary>
+    /// <param name="pbstrUniqueId">The unique identifier consisting of all defined tokens.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_UNEXPECTED if no Id was defined (required).</returns>
+    STDMETHOD(GetUniqueId)(
+        _Out_ BSTR* pbstrUniqueId
+        ) = 0;
+
+    /// <summary>
+    /// Gets a value indicating whether the package refers to an external extension.
+    /// </summary>
+    /// <param name="pfIsExtension">A value indicating whether the package refers to an external extension.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_UNEXPECTED if no Id was defined (required).</returns>
+    STDMETHOD(GetIsExtension)(
+        _Out_ VARIANT_BOOL* pfIsExtension
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupHelper;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Helper functions.
+/// </summary>
+/// <remarks>
+/// You can query for this interface from the <see cref="SetupConfiguration"/> class.
+/// </remarks>
+struct DECLSPEC_UUID("42b21b78-6192-463e-87bf-d577838f1d5c") DECLSPEC_NOVTABLE ISetupHelper : public IUnknown
+{
+    /// <summary>
+    /// Parses a dotted quad version string into a 64-bit unsigned integer.
+    /// </summary>
+    /// <param name="pwszVersion">The dotted quad version string to parse, e.g. 1.2.3.4.</param>
+    /// <param name="pullVersion">A 64-bit unsigned integer representing the version. You can compare this to other versions.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_INVALIDARG if the version is not valid.</returns>
+    STDMETHOD(ParseVersion)(
+        _In_ LPCOLESTR pwszVersion,
+        _Out_ PULONGLONG pullVersion
+        ) = 0;
+
+    /// <summary>
+    /// Parses a dotted quad version string into a 64-bit unsigned integer.
+    /// </summary>
+    /// <param name="pwszVersionRange">The string containing 1 or 2 dotted quad version strings to parse, e.g. [1.0,) that means 1.0.0.0 or newer.</param>
+    /// <param name="pullMinVersion">A 64-bit unsigned integer representing the minimum version, which may be 0. You can compare this to other versions.</param>
+    /// <param name="pullMaxVersion">A 64-bit unsigned integer representing the maximum version, which may be MAXULONGLONG. You can compare this to other versions.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_INVALIDARG if the version range is not valid.</returns>
+    STDMETHOD(ParseVersionRange)(
+        _In_ LPCOLESTR pwszVersionRange,
+        _Out_ PULONGLONG pullMinVersion,
+        _Out_ PULONGLONG pullMaxVersion
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupErrorState;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Information about the error state of an instance.
+/// </summary>
+struct DECLSPEC_UUID("46DCCD94-A287-476A-851E-DFBC2FFDBC20") DECLSPEC_NOVTABLE ISetupErrorState : public IUnknown
+{
+    /// <summary>
+    /// Gets an array of failed package references.
+    /// </summary>
+    /// <param name="ppsaPackages">Pointer to an array of <see cref="ISetupFailedPackageReference"/>, if packages have failed.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetFailedPackages)(
+        _Outptr_result_maybenull_ LPSAFEARRAY* ppsaFailedPackages
+        ) = 0;
+
+    /// <summary>
+    /// Gets an array of skipped package references.
+    /// </summary>
+    /// <param name="ppsaPackages">Pointer to an array of <see cref="ISetupPackageReference"/>, if packages have been skipped.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetSkippedPackages)(
+        _Outptr_result_maybenull_ LPSAFEARRAY* ppsaSkippedPackages
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupErrorState2;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Information about the error state of an instance.
+/// </summary>
+struct DECLSPEC_UUID("9871385B-CA69-48F2-BC1F-7A37CBF0B1EF") DECLSPEC_NOVTABLE ISetupErrorState2 : public ISetupErrorState
+{
+    /// <summary>
+    /// Gets the path to the error log.
+    /// </summary>
+    /// <param name="pbstrChip">The path to the error log.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetErrorLogFilePath)(
+        _Outptr_result_maybenull_ BSTR* pbstrErrorLogFilePath
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupFailedPackageReference;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// A reference to a failed package.
+/// </summary>
+struct DECLSPEC_UUID("E73559CD-7003-4022-B134-27DC650B280F") DECLSPEC_NOVTABLE ISetupFailedPackageReference : public ISetupPackageReference
+{
+};
+
+#endif
+
+EXTERN_C const IID IID_ISetupFailedPackageReference2;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// A reference to a failed package.
+/// </summary>
+struct DECLSPEC_UUID("0FAD873E-E874-42E3-B268-4FE2F096B9CA") DECLSPEC_NOVTABLE ISetupFailedPackageReference2 : public ISetupFailedPackageReference
+{
+    /// <summary>
+    /// Gets the path to the optional package log.
+    /// </summary>
+    /// <param name="pbstrId">The path to the optional package log.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetLogFilePath)(
+        _Outptr_result_maybenull_ BSTR* pbstrLogFilePath
+        ) = 0;
+
+    /// <summary>
+    /// Gets the description of the package failure.
+    /// </summary>
+    /// <param name="pbstrId">The description of the package failure.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetDescription)(
+        _Outptr_result_maybenull_ BSTR* pbstrDescription
+        ) = 0;
+
+    /// <summary>
+    /// Gets the signature to use for feedback reporting.
+    /// </summary>
+    /// <param name="pbstrId">The signature to use for feedback reporting.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetSignature)(
+        _Outptr_result_maybenull_ BSTR* pbstrSignature
+        ) = 0;
+
+    /// <summary>
+    ///  Gets the array of details for this package failure.
+    /// </summary>
+    /// <param name="ppsaDetails">Pointer to an array of details as BSTRs.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetDetails)(
+        _Out_ LPSAFEARRAY* ppsaDetails
+        ) = 0;
+
+    /// <summary>
+    /// Gets an array of packages affected by this package failure.
+    /// </summary>
+    /// <param name="ppsaPackages">Pointer to an array of <see cref="ISetupPackageReference"/> for packages affected by this package failure. This may be NULL.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetAffectedPackages)(
+        _Out_ LPSAFEARRAY* ppsaAffectedPackages
+        ) = 0;
+};
+
+#endif
+
+EXTERN_C const IID IID_ISetupPropertyStore;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Provides named properties.
+/// </summary>
+/// <remarks>
+/// You can get this from an <see cref="ISetupInstance"/>, <see cref="ISetupPackageReference"/>, or derivative.
+/// </remarks>
+struct DECLSPEC_UUID("C601C175-A3BE-44BC-91F6-4568D230FC83") DECLSPEC_NOVTABLE ISetupPropertyStore : public IUnknown
+{
+    /// <summary>
+    /// Gets an array of property names in this property store.
+    /// </summary>
+    /// <param name="ppsaNames">Pointer to an array of property names as BSTRs.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetNames)(
+        _Out_ LPSAFEARRAY* ppsaNames
+        ) = 0;
+
+    /// <summary>
+    /// Gets the value of a named property in this property store.
+    /// </summary>
+    /// <param name="pwszName">The name of the property to get.</param>
+    /// <param name="pvtValue">The value of the property.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_NOTFOUND if the property is not defined or E_NOTSUPPORTED if the property type is not supported.</returns>
+    STDMETHOD(GetValue)(
+        _In_ LPCOLESTR pwszName,
+        _Out_ LPVARIANT pvtValue
+        ) = 0;
+};
+
+#endif
+
+EXTERN_C const IID IID_ISetupLocalizedPropertyStore;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Provides localized named properties.
+/// </summary>
+/// <remarks>
+/// You can get this from an <see cref="ISetupLocalizedProperties"/>.
+/// </remarks>
+struct DECLSPEC_UUID("5BB53126-E0D5-43DF-80F1-6B161E5C6F6C") DECLSPEC_NOVTABLE ISetupLocalizedPropertyStore : public IUnknown
+{
+    /// <summary>
+    /// Gets an array of property names in this property store.
+    /// </summary>
+    /// <param name="lcid">The LCID for the property names.</param>
+    /// <param name="ppsaNames">Pointer to an array of property names as BSTRs.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetNames)(
+        _In_ LCID lcid,
+        _Out_ LPSAFEARRAY* ppsaNames
+        ) = 0;
+
+    /// <summary>
+    /// Gets the value of a named property in this property store.
+    /// </summary>
+    /// <param name="pwszName">The name of the property to get.</param>
+    /// <param name="lcid">The LCID for the property.</param>
+    /// <param name="pvtValue">The value of the property.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_NOTFOUND if the property is not defined or E_NOTSUPPORTED if the property type is not supported.</returns>
+    STDMETHOD(GetValue)(
+        _In_ LPCOLESTR pwszName,
+        _In_ LCID lcid,
+        _Out_ LPVARIANT pvtValue
+        ) = 0;
+};
+
+#endif
+
+// Class declarations
+//
+EXTERN_C const CLSID CLSID_SetupConfiguration;
+
+#ifdef __cplusplus
+/// <summary>
+/// This class implements <see cref="ISetupConfiguration"/>, <see cref="ISetupConfiguration2"/>, and <see cref="ISetupHelper"/>.
+/// </summary>
+class DECLSPEC_UUID("177F0C4A-1CD3-4DE7-A32C-71DBBB9FA36D") SetupConfiguration;
+#endif
+
+// Function declarations
+//
+/// <summary>
+/// Gets an <see cref="ISetupConfiguration"/> that provides information about product instances installed on the machine.
+/// </summary>
+/// <param name="ppConfiguration">The <see cref="ISetupConfiguration"/> that provides information about product instances installed on the machine.</param>
+/// <param name="pReserved">Reserved for future use.</param>
+/// <returns>Standard HRESULT indicating success or failure.</returns>
+STDMETHODIMP GetSetupConfiguration(
+    _Out_ ISetupConfiguration** ppConfiguration,
+    _Reserved_ LPVOID pReserved
+);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/PC/external/v140/amd64/Microsoft.VisualStudio.Setup.Configuration.Native.lib b/PC/external/v140/amd64/Microsoft.VisualStudio.Setup.Configuration.Native.lib
new file mode 100644
index 0000000..675a501
--- /dev/null
+++ b/PC/external/v140/amd64/Microsoft.VisualStudio.Setup.Configuration.Native.lib
diff --git a/PC/external/v140/win32/Microsoft.VisualStudio.Setup.Configuration.Native.lib b/PC/external/v140/win32/Microsoft.VisualStudio.Setup.Configuration.Native.lib
new file mode 100644
index 0000000..40f70b2
--- /dev/null
+++ b/PC/external/v140/win32/Microsoft.VisualStudio.Setup.Configuration.Native.lib
diff --git a/PC/external/v141/amd64/Microsoft.VisualStudio.Setup.Configuration.Native.lib b/PC/external/v141/amd64/Microsoft.VisualStudio.Setup.Configuration.Native.lib
new file mode 100644
index 0000000..675a501
--- /dev/null
+++ b/PC/external/v141/amd64/Microsoft.VisualStudio.Setup.Configuration.Native.lib
diff --git a/PC/external/v141/win32/Microsoft.VisualStudio.Setup.Configuration.Native.lib b/PC/external/v141/win32/Microsoft.VisualStudio.Setup.Configuration.Native.lib
new file mode 100644
index 0000000..40f70b2
--- /dev/null
+++ b/PC/external/v141/win32/Microsoft.VisualStudio.Setup.Configuration.Native.lib
diff --git a/PCbuild/_lzma.vcxproj b/PCbuild/_lzma.vcxproj
index 7ec2692..d8b159e 100644
--- a/PCbuild/_lzma.vcxproj
+++ b/PCbuild/_lzma.vcxproj
@@ -65,7 +65,7 @@
       <PreprocessorDefinitions>WIN32;_FILE_OFFSET_BITS=64;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;LZMA_API_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>$(OutDir)/liblzma$(PyDebugExt).lib</AdditionalDependencies>
+      <AdditionalDependencies>$(OutDir)liblzma$(PyDebugExt).lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
diff --git a/PCbuild/build.bat b/PCbuild/build.bat
index 99d9ead..d4aebf5 100644
--- a/PCbuild/build.bat
+++ b/PCbuild/build.bat
@@ -84,7 +84,7 @@ if "%~1"=="-E" (set IncludeExternals=false) & shift & goto CheckOpts
 if "%~1"=="--no-ssl" (set IncludeSSL=false) & shift & goto CheckOpts
 if "%~1"=="--no-tkinter" (set IncludeTkinter=false) & shift & goto CheckOpts
 
-if "%IncludeExternals%"=="" set IncludeExternals=false
+if "%IncludeExternals%"=="" set IncludeExternals=true
 if "%IncludeSSL%"=="" set IncludeSSL=true
 if "%IncludeTkinter%"=="" set IncludeTkinter=true
 
diff --git a/PCbuild/pythoncore.vcxproj b/PCbuild/pythoncore.vcxproj
index b0d2e9b..5991095 100644
--- a/PCbuild/pythoncore.vcxproj
+++ b/PCbuild/pythoncore.vcxproj
@@ -50,6 +50,8 @@
   <PropertyGroup>
     <KillPython>true</KillPython>
     <RequirePGCFiles>true</RequirePGCFiles>
+    <IncludeExternals Condition="$(IncludeExternals) == '' and Exists('$(zlibDir)\zlib.h')">true</IncludeExternals>
+    <IncludeExternals Condition="$(IncludeExternals) == ''">false</IncludeExternals>
   </PropertyGroup>
   <ImportGroup Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
@@ -73,6 +75,7 @@
     </ClCompile>
     <Link>
       <AdditionalDependencies>version.lib;shlwapi.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>%(AdditionalLibraryDirectories);$(PySourcePath)PC\external\$(PlatformToolset)\$(ArchName)</AdditionalLibraryDirectories>
       <BaseAddress>0x1e000000</BaseAddress>
     </Link>
   </ItemDefinitionGroup>
@@ -218,6 +221,7 @@
     <ClInclude Include="$(zlibDir)\zutil.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="..\Modules\_asynciomodule.c" />
     <ClCompile Include="..\Modules\_bisectmodule.c" />
     <ClCompile Include="..\Modules\_blake2\blake2module.c" />
     <ClCompile Include="..\Modules\_blake2\blake2b_impl.c" />
@@ -341,6 +345,7 @@
     <ClCompile Include="..\PC\config.c" />
     <ClCompile Include="..\PC\getpathp.c" />
     <ClCompile Include="..\PC\msvcrtmodule.c" />
+    <ClCompile Include="..\PC\_findvs.cpp" />
     <ClCompile Include="..\Python\pyhash.c" />
     <ClCompile Include="..\Python\_warnings.c" />
     <ClCompile Include="..\Python\asdl.c" />
diff --git a/PCbuild/pythoncore.vcxproj.filters b/PCbuild/pythoncore.vcxproj.filters
index cbe1a39..115ce85 100644
--- a/PCbuild/pythoncore.vcxproj.filters
+++ b/PCbuild/pythoncore.vcxproj.filters
@@ -321,39 +321,6 @@
     <ClInclude Include="..\Modules\_io\_iomodule.h">
       <Filter>Modules\_io</Filter>
     </ClInclude>
-    <ClInclude Include="..\Modules\zlib\crc32.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Modules\zlib\deflate.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Modules\zlib\inffast.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Modules\zlib\inffixed.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Modules\zlib\inflate.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Modules\zlib\inftrees.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Modules\zlib\trees.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Modules\zlib\zconf.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Modules\zlib\zconf.in.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Modules\zlib\zlib.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Modules\zlib\zutil.h">
-      <Filter>Modules\zlib</Filter>
-    </ClInclude>
     <ClInclude Include="..\Modules\cjkcodecs\alg_jisx0201.h">
       <Filter>Modules\cjkcodecs</Filter>
     </ClInclude>
@@ -444,11 +411,41 @@
     <ClInclude Include="..\Include\odictobject.h">
       <Filter>Include</Filter>
     </ClInclude>
+    <ClInclude Include="$(zlibDir)\crc32.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(zlibDir)\deflate.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(zlibDir)\inffast.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(zlibDir)\inffixed.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(zlibDir)\inflate.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(zlibDir)\inftrees.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(zlibDir)\trees.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(zlibDir)\zconf.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(zlibDir)\zconf.in.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(zlibDir)\zlib.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(zlibDir)\zutil.h">
+      <Filter>Modules\zlib</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\_asynciomodule.c">
-      <Filter>Modules</Filter>
-    </ClCompile>
     <ClCompile Include="..\Modules\_bisectmodule.c">
       <Filter>Modules</Filter>
     </ClCompile>
@@ -614,39 +611,6 @@
     <ClCompile Include="..\Modules\_io\_iomodule.c">
       <Filter>Modules\_io</Filter>
     </ClCompile>
-    <ClCompile Include="..\Modules\zlib\adler32.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
-    <ClCompile Include="..\Modules\zlib\compress.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
-    <ClCompile Include="..\Modules\zlib\crc32.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
-    <ClCompile Include="..\Modules\zlib\deflate.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
-    <ClCompile Include="..\Modules\zlib\infback.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
-    <ClCompile Include="..\Modules\zlib\inffast.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
-    <ClCompile Include="..\Modules\zlib\inflate.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
-    <ClCompile Include="..\Modules\zlib\inftrees.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
-    <ClCompile Include="..\Modules\zlib\trees.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
-    <ClCompile Include="..\Modules\zlib\uncompr.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
-    <ClCompile Include="..\Modules\zlib\zutil.c">
-      <Filter>Modules\zlib</Filter>
-    </ClCompile>
     <ClCompile Include="..\Modules\cjkcodecs\_codecs_cn.c">
       <Filter>Modules\cjkcodecs</Filter>
     </ClCompile>
@@ -1001,10 +965,49 @@
     <ClCompile Include="..\Objects\odictobject.c">
       <Filter>Objects</Filter>
     </ClCompile>
+    <ClCompile Include="..\PC\_findvs.cpp">
+      <Filter>PC</Filter>
+    </ClCompile>
+    <ClCompile Include="..\Modules\_asynciomodule.c">
+      <Filter>Modules</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\adler32.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\compress.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\crc32.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\deflate.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\infback.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\inffast.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\inflate.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\inftrees.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\trees.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\uncompr.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(zlibDir)\zutil.c">
+      <Filter>Modules\zlib</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="..\PC\python_nt.rc">
       <Filter>Resource Files</Filter>
     </ResourceCompile>
   </ItemGroup>
-</Project>
+</Project>
\ No newline at end of file