diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index 852da5d..130201a 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -302,6 +302,9 @@
     <ClInclude Include="..\..\..\src\core\iomgr\udp_server.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\wakeup_fd_pipe.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\wakeup_fd_posix.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue_posix.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue_windows.h" />
     <ClInclude Include="..\..\..\src\core\json\json.h" />
     <ClInclude Include="..\..\..\src\core\json\json_common.h" />
     <ClInclude Include="..\..\..\src\core\json\json_reader.h" />
@@ -520,6 +523,10 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\wakeup_fd_posix.c">
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\workqueue_posix.c">
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\workqueue_windows.c">
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\json\json.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\json\json_reader.c">
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index b334602..20bd228 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -259,6 +259,12 @@
     <ClCompile Include="..\..\..\src\core\iomgr\wakeup_fd_posix.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\workqueue_posix.c">
+      <Filter>src\core\iomgr</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\workqueue_windows.c">
+      <Filter>src\core\iomgr</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\json\json.c">
       <Filter>src\core\json</Filter>
     </ClCompile>
@@ -668,6 +674,15 @@
     <ClInclude Include="..\..\..\src\core\iomgr\wakeup_fd_posix.h">
       <Filter>src\core\iomgr</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue_posix.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue_windows.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\src\core\json\json.h">
       <Filter>src\core\json</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index f069aa5..8cf0be6 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -281,6 +281,9 @@
     <ClInclude Include="..\..\..\src\core\iomgr\udp_server.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\wakeup_fd_pipe.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\wakeup_fd_posix.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue_posix.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue_windows.h" />
     <ClInclude Include="..\..\..\src\core\json\json.h" />
     <ClInclude Include="..\..\..\src\core\json\json_common.h" />
     <ClInclude Include="..\..\..\src\core\json\json_reader.h" />
@@ -459,6 +462,10 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\wakeup_fd_posix.c">
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\workqueue_posix.c">
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\workqueue_windows.c">
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\json\json.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\json\json_reader.c">
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index 35f8599..a6eccd4 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -199,6 +199,12 @@
     <ClCompile Include="..\..\..\src\core\iomgr\wakeup_fd_posix.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\workqueue_posix.c">
+      <Filter>src\core\iomgr</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\workqueue_windows.c">
+      <Filter>src\core\iomgr</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\json\json.c">
       <Filter>src\core\json</Filter>
     </ClCompile>
@@ -566,6 +572,15 @@
     <ClInclude Include="..\..\..\src\core\iomgr\wakeup_fd_posix.h">
       <Filter>src\core\iomgr</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue_posix.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\workqueue_windows.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\src\core\json\json.h">
       <Filter>src\core\json</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/test/workqueue_test/workqueue_test.vcxproj b/vsprojects/vcxproj/test/workqueue_test/workqueue_test.vcxproj
new file mode 100644
index 0000000..851e650
--- /dev/null
+++ b/vsprojects/vcxproj/test/workqueue_test/workqueue_test.vcxproj
@@ -0,0 +1,172 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\..\..\..\vsprojects\packages\grpc.dependencies.openssl.1.0.2.3\build\native\grpc.dependencies.openssl.props" Condition="Exists('..\..\..\..\vsprojects\packages\grpc.dependencies.openssl.1.0.2.3\build\native\1.0.2.3.props')" />
+  <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>{1B6E9651-4D88-2ACB-BEE0-26599919361D}</ProjectGuid>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
+    <PlatformToolset>v100</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
+    <PlatformToolset>v120</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\..\..\..\vsprojects\global.props" />
+    <Import Project="..\..\..\..\vsprojects\openssl.props" />
+    <Import Project="..\..\..\..\vsprojects\winsock.props" />
+    <Import Project="..\..\..\..\vsprojects\zlib.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
+    <TargetName>workqueue_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'">
+    <TargetName>workqueue_test</TargetName>
+    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
+    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
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+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
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+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
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+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
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+    <ProjectReference Include="..\..\..\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
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+    <ProjectReference Include="..\..\..\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
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+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  <Import Project="..\..\..\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\native\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\..\..\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\native\grpc.dependencies\grpc.dependencies.zlib.targets')" />
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+  <Import Project="..\..\..\..\vsprojects\packages\grpc.dependencies.openssl.1.0.2.3\build\native\grpc.dependencies.openssl.targets" Condition="Exists('..\..\..\..\vsprojects\packages\grpc.dependencies.openssl.1.0.2.3\build\native\grpc.dependencies\grpc.dependencies.openssl.targets')" />
+  </ImportGroup>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
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+    <Error Condition="!Exists('..\..\..\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\native\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\..\vsprojects\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\native\grpc.dependencies.zlib.redist.targets')" />
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+</Project>
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diff --git a/vsprojects/vcxproj/test/workqueue_test/workqueue_test.vcxproj.filters b/vsprojects/vcxproj/test/workqueue_test/workqueue_test.vcxproj.filters
new file mode 100644
index 0000000..8b8c228
--- /dev/null
+++ b/vsprojects/vcxproj/test/workqueue_test/workqueue_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="..\..\..\..\test\core\iomgr\workqueue_test.c">
+      <Filter>test\core\iomgr</Filter>
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+  <ItemGroup>
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