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.

7 files changed, 1 insertions, 453 deletions

diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index b042d26e06..0c60be122d 100644
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -1029,23 +1029,6 @@ class Popen(object):
             return Handle(h)
 
 
-        def _find_w9xpopen(self):
-            """Find and return absolut path to w9xpopen.exe"""
-            w9xpopen = os.path.join(
-                            os.path.dirname(_winapi.GetModuleFileName(0)),
-                                    "w9xpopen.exe")
-            if not os.path.exists(w9xpopen):
-                # Eeek - file-not-found - possibly an embedding
-                # situation - see if we can locate it in sys.exec_prefix
-                w9xpopen = os.path.join(os.path.dirname(sys.base_exec_prefix),
-                                        "w9xpopen.exe")
-                if not os.path.exists(w9xpopen):
-                    raise SubprocessError(
-                            "Cannot locate w9xpopen.exe, which is needed for "
-                            "Popen to work with your shell or platform.")
-            return w9xpopen
-
-
         def _execute_child(self, args, executable, preexec_fn, close_fds,
                            pass_fds, cwd, env,
                            startupinfo, creationflags, shell,
@@ -1074,21 +1057,6 @@ class Popen(object):
                 startupinfo.wShowWindow = _winapi.SW_HIDE
                 comspec = os.environ.get("COMSPEC", "cmd.exe")
                 args = '{} /c "{}"'.format (comspec, args)
-                if (_winapi.GetVersion() >= 0x80000000 or
-                        os.path.basename(comspec).lower() == "command.com"):
-                    # Win9x, or using command.com on NT. We need to
-                    # use the w9xpopen intermediate program. For more
-                    # information, see KB Q150956
-                    # (http://web.archive.org/web/20011105084002/http://support.microsoft.com/support/kb/articles/Q150/9/56.asp)
-                    w9xpopen = self._find_w9xpopen()
-                    args = '"%s" %s' % (w9xpopen, args)
-                    # Not passing CREATE_NEW_CONSOLE has been known to
-                    # cause random failures on win9x.  Specifically a
-                    # dialog: "Your program accessed mem currently in
-                    # use at xxx" and a hopeful warning about the
-                    # stability of your system.  Cost is Ctrl+C won't
-                    # kill children.
-                    creationflags |= _winapi.CREATE_NEW_CONSOLE
 
             # Start the process
             try:
diff --git a/PC/w9xpopen.c b/PC/w9xpopen.c
deleted file mode 100644
index b3978dd42d..0000000000
--- a/PC/w9xpopen.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * w9xpopen.c
- *
- * Serves as an intermediate stub Win32 console application to
- * avoid a hanging pipe when redirecting 16-bit console based
- * programs (including MS-DOS console based programs and batch
- * files) on Window 95 and Windows 98.
- *
- * This program is to be launched with redirected standard
- * handles. It will launch the command line specified 16-bit
- * console based application in the same console, forwarding
- * its own redirected standard handles to the 16-bit child.
-
- * AKA solution to the problem described in KB: Q150956.
- */    
-
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#include <stdio.h>
-#include <stdlib.h>  /* for malloc and its friends */
-
-const char *usage =
-"This program is used by Python's os.popen function\n"
-"to work around a limitation in Windows 95/98.  It is\n"
-"not designed to be used as a stand-alone program.";
-
-int main(int argc, char *argv[])
-{
-    BOOL bRet;
-    STARTUPINFO si;
-    PROCESS_INFORMATION pi;
-    DWORD exit_code=0;
-    size_t cmdlen = 0;
-    int i;
-    char *cmdline, *cmdlinefill;
-
-    if (argc < 2) {
-        if (GetFileType(GetStdHandle(STD_INPUT_HANDLE))==FILE_TYPE_CHAR)
-            /* Attached to a console, and therefore not executed by Python
-               Display a message box for the inquisitive user
-            */
-            MessageBox(NULL, usage, argv[0], MB_OK);
-        else {
-            /* Eeek - executed by Python, but args are screwed!
-               Write an error message to stdout so there is at
-               least some clue for the end user when it appears
-               in their output.
-               A message box would be hidden and blocks the app.
-             */
-            fprintf(stdout, "Internal popen error - no args specified\n%s\n", usage);
-        }
-        return 1;
-    }
-    /* Build up the command-line from the args.
-       Args with a space are quoted, existing quotes are escaped.
-       To keep things simple calculating the buffer size, we assume
-       every character is a quote - ie, we allocate double what we need
-       in the worst case.  As this is only double the command line passed
-       to us, there is a good chance this is reasonably small, so the total 
-       allocation will almost always be < 512 bytes.
-    */
-    for (i=1;i<argc;i++)
-        cmdlen += strlen(argv[i])*2 + 3; /* one space, maybe 2 quotes */
-    cmdline = cmdlinefill = (char *)malloc(cmdlen+1);
-    if (cmdline == NULL)
-        return -1;
-    for (i=1;i<argc;i++) {
-        const char *arglook;
-        int bQuote = strchr(argv[i], ' ') != NULL;
-        if (bQuote)
-            *cmdlinefill++ = '"';
-        /* escape quotes */
-        for (arglook=argv[i];*arglook;arglook++) {
-            if (*arglook=='"')
-                *cmdlinefill++ = '\\';
-            *cmdlinefill++ = *arglook;
-        }
-        if (bQuote)
-            *cmdlinefill++ = '"';
-        *cmdlinefill++ = ' ';
-    }
-    *cmdlinefill = '\0';
-
-    /* Make child process use this app's standard files. */
-    ZeroMemory(&si, sizeof si);
-    si.cb = sizeof si;
-    si.dwFlags = STARTF_USESTDHANDLES;
-    si.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
-    si.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
-    si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
-
-    bRet = CreateProcess(
-        NULL, cmdline,
-        NULL, NULL,
-        TRUE, 0,
-        NULL, NULL,
-        &si, &pi
-        );
-
-    free(cmdline);
-
-    if (bRet) {
-        if (WaitForSingleObject(pi.hProcess, INFINITE) != WAIT_FAILED) {
-	    GetExitCodeProcess(pi.hProcess, &exit_code);
-	}
-        CloseHandle(pi.hProcess);
-        CloseHandle(pi.hThread);
-        return exit_code;
-    }
-
-    return 1;
-}
diff --git a/PCbuild/pcbuild.sln b/PCbuild/pcbuild.sln
index e5ba1de552..99398db480 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 d0a9de0b06..e1d05e5e50 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 d1afe22c9b..0000000000
--- 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.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="pyproject.props" />
-    <Import Project="x64.props" />
-    <Import Project="release.props" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="pyproject.props" />
-    <Import Project="x64.props" />
-    <Import Project="debug.props" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup>
-    <_ProjectFileVersion>10.0.40219.1</_ProjectFileVersion>
-    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
-    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
-    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
-    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
-    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
-    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
-    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
-    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" />
-    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" />
-    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
-    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" />
-    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" />
-    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
-    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" />
-    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" />
-    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
-    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" />
-    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" />
-    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
-    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
-    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
-    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
-    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
-    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
-  </PropertyGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <ClCompile>
-      <Optimization>Disabled</Optimization>
-      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
-      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-    </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <Midl>
-      <TargetEnvironment>X64</TargetEnvironment>
-    </Midl>
-    <ClCompile>
-      <Optimization>Disabled</Optimization>
-      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
-      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-    </ClCompile>
-    <Link>
-      <SubSystem>Console</SubSystem>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <ClCompile>
-      <Optimization>MaxSpeed</Optimization>
-      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <StringPooling>true</StringPooling>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-    </ClCompile>
-    <Link>
-      <GenerateDebugInformation>false</GenerateDebugInformation>
-      <SubSystem>Console</SubSystem>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <Midl>
-      <TargetEnvironment>X64</TargetEnvironment>
-    </Midl>
-    <ClCompile>
-      <Optimization>MaxSpeed</Optimization>
-      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <StringPooling>true</StringPooling>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-    </ClCompile>
-    <Link>
-      <GenerateDebugInformation>false</GenerateDebugInformation>
-      <SubSystem>Console</SubSystem>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">
-    <ClCompile>
-      <Optimization>MaxSpeed</Optimization>
-      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <StringPooling>true</StringPooling>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-    </ClCompile>
-    <Link>
-      <GenerateDebugInformation>false</GenerateDebugInformation>
-      <SubSystem>Console</SubSystem>
-      <ImportLibrary>
-      </ImportLibrary>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">
-    <Midl>
-      <TargetEnvironment>X64</TargetEnvironment>
-    </Midl>
-    <ClCompile>
-      <Optimization>MaxSpeed</Optimization>
-      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <StringPooling>true</StringPooling>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-    </ClCompile>
-    <Link>
-      <GenerateDebugInformation>false</GenerateDebugInformation>
-      <SubSystem>Console</SubSystem>
-      <ImportLibrary>
-      </ImportLibrary>
-      <TargetMachine>MachineX64</TargetMachine>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">
-    <ClCompile>
-      <Optimization>MaxSpeed</Optimization>
-      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <StringPooling>true</StringPooling>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-    </ClCompile>
-    <Link>
-      <GenerateDebugInformation>false</GenerateDebugInformation>
-      <SubSystem>Console</SubSystem>
-      <ImportLibrary>
-      </ImportLibrary>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">
-    <Midl>
-      <TargetEnvironment>X64</TargetEnvironment>
-    </Midl>
-    <ClCompile>
-      <Optimization>MaxSpeed</Optimization>
-      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <StringPooling>true</StringPooling>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-    </ClCompile>
-    <Link>
-      <GenerateDebugInformation>false</GenerateDebugInformation>
-      <SubSystem>Console</SubSystem>
-      <ImportLibrary>
-      </ImportLibrary>
-      <TargetMachine>MachineX64</TargetMachine>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemGroup>
-    <ClCompile Include="..\PC\w9xpopen.c" />
-  </ItemGroup>
-  <Import Project="$(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 dec67add2d..0000000000
--- 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
diff --git a/Tools/msi/msi.py b/Tools/msi/msi.py
index cd1c60be09..fca43e22b9 100644
--- a/Tools/msi/msi.py
+++ b/Tools/msi/msi.py
@@ -956,8 +956,6 @@ def add_files(db):
     # Add all executables, icons, text files into the TARGETDIR component
     root = PyDirectory(db, cab, None, srcdir, "TARGETDIR", "SourceDir")
     default_feature.set_current()
-    if not msilib.Win64:
-        root.add_file("%s/w9xpopen.exe" % PCBUILD)
     root.add_file("README.txt", src="README")
     root.add_file("NEWS.txt", src="Misc/NEWS")
     generate_license()