diff --git a/aegisub/build/msbuild/csrihelper/csrihelper.vcxproj b/aegisub/build/msbuild/csrihelper/csrihelper.vcxproj
new file mode 100644
index 000000000..ef6b76a13
--- /dev/null
+++ b/aegisub/build/msbuild/csrihelper/csrihelper.vcxproj
@@ -0,0 +1,74 @@
+<?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="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>{C832EAF3-860D-4373-A02C-933626B47A5E}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>csrihelper</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
+    <UseDebugLibraries>true</UseDebugLibraries>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(MSBuildThisFileDirectory)..\aegisub.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros">
+    <SrcDir>..\..\..\..\contrib\csri\</SrcDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SrcDir)include\;$(SrcDir)lib\;$(SrcDir)lib\win32\;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="$(SrcDir)include\csri\csri.h" />
+    <ClInclude Include="$(SrcDir)include\csri\fmtids.h" />
+    <ClInclude Include="$(SrcDir)include\csri\logging.h" />
+    <ClInclude Include="$(SrcDir)include\csri\openerr.h" />
+    <ClInclude Include="$(SrcDir)include\csri\stream.h" />
+    <ClInclude Include="$(SrcDir)include\subhelp.h" />
+    <ClInclude Include="$(SrcDir)include\visibility.h" />
+    <ClInclude Include="$(SrcDir)lib\csrilib.h" />
+    <ClInclude Include="$(SrcDir)lib\win32\csrilib_os.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="$(SrcDir)lib\list.c" />
+    <ClCompile Include="$(SrcDir)lib\win32\enumerate.c" />
+    <ClCompile Include="$(SrcDir)lib\wrap.c" />
+    <ClCompile Include="$(SrcDir)subhelp\logging.c" />
+    <ClCompile Include="$(SrcDir)subhelp\win32\openfile.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/aegisub/build/msbuild/csrihelper/csrihelper.vcxproj.filters b/aegisub/build/msbuild/csrihelper/csrihelper.vcxproj.filters
new file mode 100644
index 000000000..81472ac59
--- /dev/null
+++ b/aegisub/build/msbuild/csrihelper/csrihelper.vcxproj.filters
@@ -0,0 +1,63 @@
+<?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>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\..\..\contrib\csri\include\subhelp.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\..\contrib\csri\include\visibility.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\..\contrib\csri\include\csri\csri.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\..\contrib\csri\include\csri\fmtids.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\..\contrib\csri\include\csri\logging.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\..\contrib\csri\include\csri\openerr.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\..\contrib\csri\include\csri\stream.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\..\contrib\csri\lib\csrilib.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\..\contrib\csri\lib\win32\csrilib_os.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\..\contrib\csri\lib\list.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\..\contrib\csri\lib\wrap.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\..\contrib\csri\lib\win32\enumerate.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\..\contrib\csri\subhelp\logging.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\..\contrib\csri\subhelp\win32\openfile.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file