Fix #14470. Remove w9xpopen per PEP 11.

As stated in PEP 11, 3.4 removes code on Windows platforms where
COMSPEC points to command.com. The w9xpopen project in Visual Studio
was added to support that case, and there was a special case in subprocess
to cover that situation. This change removes the w9xpopen project from
the Visual Studio solution and removes any references to the w9xpopen
executable.

4 files changed, 1 insertions, 307 deletions

diff --git a/PCbuild/pcbuild.sln b/PCbuild/pcbuild.sln
index e5ba1de..99398db 100644
--- a/PCbuild/pcbuild.sln
+++ b/PCbuild/pcbuild.sln
@@ -14,8 +14,6 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pythoncore", "pythoncore.vc
 EndProject

 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pythonw", "pythonw.vcxproj", "{F4229CC3-873C-49AE-9729-DD308ED4CD4A}"

 EndProject

-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "w9xpopen", "w9xpopen.vcxproj", "{E9E0A1F6-0009-4E8C-B8F8-1B8F5D49A058}"

-EndProject

 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "make_buildinfo", "make_buildinfo.vcxproj", "{C73F0EC1-358B-4177-940F-0846AC8B04CD}"

 EndProject

 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "winsound", "winsound.vcxproj", "{28B5D777-DDF2-4B6B-B34F-31D938813856}"

diff --git a/PCbuild/python.vcxproj b/PCbuild/python.vcxproj
index d0a9de0..e1d05e5 100644
--- a/PCbuild/python.vcxproj
+++ b/PCbuild/python.vcxproj
@@ -357,12 +357,8 @@
       <Project>{cf7ac3d1-e2df-41d2-bea6-1e2556cdea26}</Project>
       <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
     </ProjectReference>
-    <ProjectReference Include="w9xpopen.vcxproj">
-      <Project>{e9e0a1f6-0009-4e8c-b8f8-1b8f5d49a058}</Project>
-      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
-    </ProjectReference>
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/PCbuild/w9xpopen.vcxproj b/PCbuild/w9xpopen.vcxproj
deleted file mode 100644
index d1afe22..0000000
--- a/PCbuild/w9xpopen.vcxproj
+++ /dev/null
@@ -1,287 +0,0 @@
-<?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>{E9E0A1F6-0009-4E8C-B8F8-1B8F5D49A058}</ProjectGuid>
-    <RootNamespace>w9xpopen</RootNamespace>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>NotSet</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>MultiByte</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.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="pyproject.props" />
-    <Import Project="release.props" />
-    <Import Project="pgupdate.props" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="pyproject.props" />
-    <Import Project="release.props" />
-    <Import Project="pginstrument.props" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="pyproject.props" />
-    <Import Project="release.props" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="pyproject.props" />
-    <Import Project="debug.props" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="pyproject.props" />
-    <Import Project="x64.props" />
-    <Import Project="release.props" />
-    <Import Project="pgupdate.props" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="pyproject.props" />
-    <Import Project="x64.props" />
-    <Import Project="release.props" />
-    <Import Project="pginstrument.props" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="pyproject.props" />
-    <Import Project="x64.props" />
-    <Import Project="release.props" />
-  </ImportGroup>
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-    <Import Project="pyproject.props" />
-    <Import Project="x64.props" />
-    <Import Project="debug.props" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup>
-    <_ProjectFileVersion>10.0.40219.1</_ProjectFileVersion>
-    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
-    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
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-    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" />
-    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" />
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-    <Midl>
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-      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <StringPooling>true</StringPooling>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-    </ClCompile>
-    <Link>
-      <GenerateDebugInformation>false</GenerateDebugInformation>
-      <SubSystem>Console</SubSystem>
-      <ImportLibrary>
-      </ImportLibrary>
-      <TargetMachine>MachineX64</TargetMachine>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemGroup>
-    <ClCompile Include="..\PC\w9xpopen.c" />
-  </ItemGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-  <ImportGroup Label="ExtensionTargets">
-  </ImportGroup>
-</Project>
\ No newline at end of file
diff --git a/PCbuild/w9xpopen.vcxproj.filters b/PCbuild/w9xpopen.vcxproj.filters
deleted file mode 100644
index dec67ad..0000000
--- a/PCbuild/w9xpopen.vcxproj.filters
+++ /dev/null
@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
-    <Filter Include="Source Files">
-      <UniqueIdentifier>{abc2dffd-3f2a-47bd-b89b-0314c99ef21e}</UniqueIdentifier>
-    </Filter>
-  </ItemGroup>
-  <ItemGroup>
-    <ClCompile Include="..\PC\w9xpopen.c">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-  </ItemGroup>
-</Project>
\ No newline at end of file