diff --git a/bc.vcxproj b/bc.vcxproj
new file mode 100644
index 000000000000..2dbbd558618f
--- /dev/null
+++ b/bc.vcxproj
@@ -0,0 +1,278 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <ProjectGuid>{D5086CFE-052C-4742-B005-E05DB983BBA2}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ItemGroup>
+    <CustomBuild Include="gen\strgen.c">
+      <Message>Building strgen</Message>
+      <Command>CL /Fo:$(Configuration)\$(ProjectName)\ /Fe:$(Configuration)\$(ProjectName)\strgen.exe gen\strgen.c</Command>
+      <Inputs>gen\strgen.c</Inputs>
+      <Outputs>$(Configuration)\$(ProjectName)\strgen.exe</Outputs>
+    </CustomBuild>
+    <CustomBuild Include="gen\lib.bc">
+      <Message>Generating $(Configuration)\$(ProjectName)/lib.c</Message>
+      <Command>START $(Configuration)\$(ProjectName)/strgen gen\lib.bc $(Configuration)\$(ProjectName)/lib.c bc_lib bc_lib_name BC_ENABLED 1</Command>
+      <Inputs>$(Configuration)\$(ProjectName)\strgen.exe;gen\lib.bc</Inputs>
+      <Outputs>$(Configuration)\$(ProjectName)\lib.c</Outputs>
+    </CustomBuild>
+    <CustomBuild Include="gen\lib2.bc">
+      <Message>Generating $(Configuration)\$(ProjectName)/lib2.c</Message>
+      <Command>START $(Configuration)\$(ProjectName)/strgen gen\lib2.bc $(Configuration)\$(ProjectName)/lib2.c bc_lib2 bc_lib2_name BC_ENABLED 1</Command>
+      <Inputs>$(Configuration)\$(ProjectName)\strgen.exe;gen\lib2.bc</Inputs>
+      <Outputs>$(Configuration)\$(ProjectName)\lib2.c</Outputs>
+    </CustomBuild>
+    <CustomBuild Include="gen\bc_help.txt">
+      <Message>Generating $(Configuration)\$(ProjectName)/bc_help.c</Message>
+      <Command>START $(Configuration)\$(ProjectName)/strgen gen\bc_help.txt $(Configuration)\$(ProjectName)\bc_help.c bc_help "" BC_ENABLED</Command>
+      <Inputs>$(Configuration)\$(ProjectName)\strgen.exe;gen\bc_help.txt</Inputs>
+      <Outputs>$(Configuration)\$(ProjectName)\bc_help.c</Outputs>
+    </CustomBuild>
+    <CustomBuild Include="gen\dc_help.txt">
+      <Message>Generating $(Configuration)\$(ProjectName)/dc_help.c</Message>
+      <Command>START $(Configuration)\$(ProjectName)/strgen gen\dc_help.txt $(Configuration)\$(ProjectName)\dc_help.c dc_help "" DC_ENABLED</Command>
+      <Inputs>$(Configuration)\$(ProjectName)\strgen.exe;gen\dc_help.txt</Inputs>
+      <Outputs>$(Configuration)\$(ProjectName)\dc_help.c</Outputs>
+    </CustomBuild>
+  </ItemGroup>
+  <PropertyGroup>
+    <CustomBuildBeforeTargets>ClCompile</CustomBuildBeforeTargets>
+  </PropertyGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+    <OutDir>$(SolutionDir)\$(Configuration)\$(ProjectName)\</OutDir>
+    <IntDir>$(SolutionDir)\$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <OutDir>$(SolutionDir)\$(Configuration)\$(ProjectName)\</OutDir>
+    <IntDir>$(SolutionDir)\$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+    <OutDir>$(SolutionDir)\$(Configuration)\$(ProjectName)\</OutDir>
+    <IntDir>$(SolutionDir)\$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+    <OutDir>$(SolutionDir)\$(Configuration)\$(ProjectName)\</OutDir>
+    <IntDir>$(SolutionDir)\$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions);BC_ENABLED=1;DC_ENABLED=1;BC_ENABLE_EXTRA_MATH=1;BC_ENABLE_HISTORY=0;BC_ENABLE_NLS=0;BC_ENABLE_PROMPT=1;BC_DEBUG_CODE=0;BC_ENABLE_LIBRARY=0;EXECSUFFIX=.exe;BUILD_TYPE=HN</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <ExceptionHandling>false</ExceptionHandling>
+      <AdditionalOptions>/W3 %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
+    <Link>
+      <TargetMachine>MachineX86</TargetMachine>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;bcrypt.lib;ucrt.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+    <PostBuildEvent>
+      <Command>copy /b "$(SolutionDir)\$(Configuration)\$(ProjectName)\bc.exe" "$(SolutionDir)\$(Configuration)\$(ProjectName)\dc.exe"</Command>
+    </PostBuildEvent>
+    <PostBuildEvent>
+      <Message>Copying bc to dc...</Message>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions);BC_ENABLED=1;DC_ENABLED=1;BC_ENABLE_EXTRA_MATH=1;BC_ENABLE_HISTORY=0;BC_ENABLE_NLS=0;BC_ENABLE_PROMPT=1;BC_DEBUG_CODE=0;BC_ENABLE_LIBRARY=0;EXECSUFFIX=.exe;BUILD_TYPE=HN</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>MaxSpeed</Optimization>
+      <ExceptionHandling>false</ExceptionHandling>
+      <AdditionalOptions>/W3 %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
+    <Link>
+      <TargetMachine>MachineX86</TargetMachine>
+      <GenerateDebugInformation>false</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;bcrypt.lib;ucrt.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+    <PostBuildEvent>
+      <Command>copy /b "$(SolutionDir)\$(Configuration)\$(ProjectName)\bc.exe" "$(SolutionDir)\$(Configuration)\$(ProjectName)\dc.exe"</Command>
+    </PostBuildEvent>
+    <PostBuildEvent>
+      <Message>Copying bc to dc...</Message>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions);BC_ENABLED=1;DC_ENABLED=1;BC_ENABLE_EXTRA_MATH=1;BC_ENABLE_HISTORY=0;BC_ENABLE_NLS=0;BC_ENABLE_PROMPT=1;BC_DEBUG_CODE=0;BC_ENABLE_LIBRARY=0;EXECSUFFIX=.exe;BUILD_TYPE=HN</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <ExceptionHandling>false</ExceptionHandling>
+      <AdditionalOptions>/W3 %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
+    <Link>
+      <TargetMachine>MachineX64</TargetMachine>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;bcrypt.lib;ucrt.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+    <PostBuildEvent>
+      <Command>copy /b "$(SolutionDir)\$(Configuration)\$(ProjectName)\bc.exe" "$(SolutionDir)\$(Configuration)\$(ProjectName)\dc.exe"</Command>
+    </PostBuildEvent>
+    <PostBuildEvent>
+      <Message>Copying bc to dc...</Message>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions);BC_ENABLED=1;DC_ENABLED=1;BC_ENABLE_EXTRA_MATH=1;BC_ENABLE_HISTORY=0;BC_ENABLE_NLS=0;BC_ENABLE_PROMPT=1;BC_DEBUG_CODE=0;BC_ENABLE_LIBRARY=0;EXECSUFFIX=.exe;BUILD_TYPE=HN</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>MaxSpeed</Optimization>
+      <ExceptionHandling>false</ExceptionHandling>
+      <AdditionalOptions>/W3 %(AdditionalOptions)</AdditionalOptions>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+    </ClCompile>
+    <Link>
+      <TargetMachine>MachineX64</TargetMachine>
+      <GenerateDebugInformation>false</GenerateDebugInformation>
+      <SubSystem>Console</SubSystem>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;bcrypt.lib;ucrt.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+    <PostBuildEvent>
+      <Command>copy /b "$(SolutionDir)\$(Configuration)\$(ProjectName)\bc.exe" "$(SolutionDir)\$(Configuration)\$(ProjectName)\dc.exe"</Command>
+    </PostBuildEvent>
+    <PostBuildEvent>
+      <Message>Copying bc to dc...</Message>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="$(Configuration)\$(ProjectName)\lib.c" />
+    <ClCompile Include="$(Configuration)\$(ProjectName)\lib2.c" />
+    <ClCompile Include="$(Configuration)\$(ProjectName)\bc_help.c" />
+    <ClCompile Include="$(Configuration)\$(ProjectName)\dc_help.c" />
+    <ClCompile Include="src\args.c" />
+    <ClCompile Include="src\bc.c" />
+    <ClCompile Include="src\bc_lex.c" />
+    <ClCompile Include="src\bc_parse.c" />
+    <ClCompile Include="src\data.c" />
+    <ClCompile Include="src\dc.c" />
+    <ClCompile Include="src\dc_lex.c" />
+    <ClCompile Include="src\dc_parse.c" />
+    <ClCompile Include="src\file.c" />
+    <ClCompile Include="src\history.c" />
+    <ClCompile Include="src\lang.c" />
+    <ClCompile Include="src\lex.c" />
+    <ClCompile Include="src\main.c" />
+    <ClCompile Include="src\num.c" />
+    <ClCompile Include="src\opt.c" />
+    <ClCompile Include="src\parse.c" />
+    <ClCompile Include="src\program.c" />
+    <ClCompile Include="src\rand.c" />
+    <ClCompile Include="src\read.c" />
+    <ClCompile Include="src\vector.c" />
+    <ClCompile Include="src\vm.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="include\args.h" />
+    <ClInclude Include="include\bc.h" />
+    <ClInclude Include="include\bcl.h" />
+    <ClInclude Include="include\dc.h" />
+    <ClInclude Include="include\file.h" />
+    <ClInclude Include="include\history.h" />
+    <ClInclude Include="include\lang.h" />
+    <ClInclude Include="include\lex.h" />
+    <ClInclude Include="include\library.h" />
+    <ClInclude Include="include\num.h" />
+    <ClInclude Include="include\opt.h" />
+    <ClInclude Include="include\parse.h" />
+    <ClInclude Include="include\program.h" />
+    <ClInclude Include="include\rand.h" />
+    <ClInclude Include="include\read.h" />
+    <ClInclude Include="include\status.h" />
+    <ClInclude Include="include\vector.h" />
+    <ClInclude Include="include\version.h" />
+    <ClInclude Include="include\vm.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <Text Include="gen\bc_help.txt" />
+    <Text Include="gen\dc_help.txt" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="gen\lib.bc" />
+    <None Include="gen\lib2.bc" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/bc.vcxproj.filters b/bc.vcxproj.filters
new file mode 100644
index 000000000000..141ecb808d08
--- /dev/null
+++ b/bc.vcxproj.filters
@@ -0,0 +1,182 @@
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+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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+    <Filter Include="Resource Files">
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+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav</Extensions>
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+      <Filter>Source Files</Filter>
+    </ClCompile>
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+      <Filter>Source Files</Filter>
+    </ClCompile>
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+      <Filter>Source Files</Filter>
+    </ClCompile>
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+      <Filter>Source Files</Filter>
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+    <ClCompile Include="gen\lib.c">
+      <Filter>Source Files</Filter>
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+      <Filter>Source Files</Filter>
+    </ClCompile>
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+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="gen\dc_help.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="include\args.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="include\bc.h">
+      <Filter>Header Files</Filter>
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+    <ClInclude Include="include\bcl.h">
+      <Filter>Header Files</Filter>
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+    <ClInclude Include="include\dc.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
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+      <Filter>Header Files</Filter>
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+    <CustomBuild Include="gen\lib.bc" />
+    <CustomBuild Include="gen\lib2.bc" />
+    <CustomBuild Include="gen\bc_help.txt" />
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\ No newline at end of file
diff --git a/bcl.vcxproj b/bcl.vcxproj
new file mode 100644
index 000000000000..3b79c8b9ef64
--- /dev/null
+++ b/bcl.vcxproj
@@ -0,0 +1,161 @@
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+      <Platform>Win32</Platform>
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+    <ProjectConfiguration Include="Release|Win32">
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new file mode 100644
index 000000000000..f75e0331cc88
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