diff --git a/examples/dpfp.c b/examples/dpfp.c
index f05fa08..a3a76df 100644
--- a/examples/dpfp.c
+++ b/examples/dpfp.c
@@ -33,6 +33,10 @@
 
 #include "libusb.h"
 
+#if defined(_MSC_VER)
+#define snprintf _snprintf
+#endif
+
 #if defined(DPFP_THREADED)
 #if defined(PLATFORM_POSIX)
 #include <fcntl.h>
diff --git a/libusb/version_nano.h b/libusb/version_nano.h
index be8986b..18701f1 100644
--- a/libusb/version_nano.h
+++ b/libusb/version_nano.h
@@ -1 +1 @@
-#define LIBUSB_NANO 11578
+#define LIBUSB_NANO 11579
diff --git a/msvc/dpfp_2013.vcxproj b/msvc/dpfp_2013.vcxproj
new file mode 100644
index 0000000..45d8420
--- /dev/null
+++ b/msvc/dpfp_2013.vcxproj
@@ -0,0 +1,87 @@
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+    <CharacterSet>Unicode</CharacterSet>
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+    <WholeProgramOptimization Condition="'$(Configuration)'=='Release'">true</WholeProgramOptimization>
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\ No newline at end of file
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new file mode 100644
index 0000000..df40d31
--- /dev/null
+++ b/msvc/dpfp_2013.vcxproj.filters
@@ -0,0 +1,26 @@
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\ No newline at end of file
diff --git a/msvc/dpfp_2015.vcxproj b/msvc/dpfp_2015.vcxproj
new file mode 100644
index 0000000..617903d
--- /dev/null
+++ b/msvc/dpfp_2015.vcxproj
@@ -0,0 +1,87 @@
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\ No newline at end of file
diff --git a/msvc/dpfp_2015.vcxproj.filters b/msvc/dpfp_2015.vcxproj.filters
new file mode 100644
index 0000000..df40d31
--- /dev/null
+++ b/msvc/dpfp_2015.vcxproj.filters
@@ -0,0 +1,26 @@
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\ No newline at end of file
diff --git a/msvc/dpfp_2017.vcxproj b/msvc/dpfp_2017.vcxproj
new file mode 100644
index 0000000..b6e963a
--- /dev/null
+++ b/msvc/dpfp_2017.vcxproj
@@ -0,0 +1,106 @@
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diff --git a/msvc/dpfp_2017.vcxproj.filters b/msvc/dpfp_2017.vcxproj.filters
new file mode 100644
index 0000000..df40d31
--- /dev/null
+++ b/msvc/dpfp_2017.vcxproj.filters
@@ -0,0 +1,26 @@
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diff --git a/msvc/dpfp_2019.vcxproj b/msvc/dpfp_2019.vcxproj
new file mode 100644
index 0000000..190c19c
--- /dev/null
+++ b/msvc/dpfp_2019.vcxproj
@@ -0,0 +1,106 @@
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new file mode 100644
index 0000000..df40d31
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diff --git a/msvc/dpfp_threaded_2013.vcxproj b/msvc/dpfp_threaded_2013.vcxproj
new file mode 100644
index 0000000..059ffbe
--- /dev/null
+++ b/msvc/dpfp_threaded_2013.vcxproj
@@ -0,0 +1,87 @@
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+    <ClCompile Condition="'$(Configuration)'=='Debug'">
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diff --git a/msvc/dpfp_threaded_2013.vcxproj.filters b/msvc/dpfp_threaded_2013.vcxproj.filters
new file mode 100644
index 0000000..6575978
--- /dev/null
+++ b/msvc/dpfp_threaded_2013.vcxproj.filters
@@ -0,0 +1,26 @@
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+    <ClCompile Include="..\examples\dpfp.c">
+      <Filter>Source Files</Filter>
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\ No newline at end of file
diff --git a/msvc/dpfp_threaded_2015.vcxproj b/msvc/dpfp_threaded_2015.vcxproj
new file mode 100644
index 0000000..2d5c9f3
--- /dev/null
+++ b/msvc/dpfp_threaded_2015.vcxproj
@@ -0,0 +1,87 @@
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+    <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">
+    <ProjectName>dpfp_threaded</ProjectName>
+    <ProjectGuid>{8c7814a2-fd6e-4185-9ea0-8208119756d4}</ProjectGuid>
+    <RootNamespace>examples</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v140</PlatformToolset>
+    <WholeProgramOptimization Condition="'$(Configuration)'=='Release'">true</WholeProgramOptimization>
+  </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.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <IntDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\$(ProjectName)\</IntDir>
+    <OutDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalIncludeDirectories>.;..\libusb;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>DPFP_THREADED;_CONSOLE;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <WarningLevel>Level3</WarningLevel>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Debug'">
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Release'">
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <ProgramDatabaseFile>$(TargetDir)$(ProjectName).pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <AdditionalDependencies>kernel32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+    <Link Condition="'$(Configuration)'=='Debug'">
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\examples\dpfp.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include=".\config.h" />
+    <ClInclude Include="..\libusb\libusb.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include=".\libusb_static_2015.vcxproj">
+      <Project>{349ee8f9-7d25-4909-aaf5-ff3fade72187}</Project>
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+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/msvc/dpfp_threaded_2015.vcxproj.filters b/msvc/dpfp_threaded_2015.vcxproj.filters
new file mode 100644
index 0000000..6575978
--- /dev/null
+++ b/msvc/dpfp_threaded_2015.vcxproj.filters
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
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+    <Filter Include="Header Files">
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+      <Filter>Header Files</Filter>
+    </ClInclude>
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+      <Filter>Header Files</Filter>
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+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\examples\dpfp.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/msvc/dpfp_threaded_2017.vcxproj b/msvc/dpfp_threaded_2017.vcxproj
new file mode 100644
index 0000000..7adeb1f
--- /dev/null
+++ b/msvc/dpfp_threaded_2017.vcxproj
@@ -0,0 +1,106 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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+    <ProjectConfiguration Include="Debug|ARM">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|ARM64">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
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+    <ProjectConfiguration Include="Release|ARM">
+      <Configuration>Release</Configuration>
+      <Platform>ARM</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|ARM64">
+      <Configuration>Release</Configuration>
+      <Platform>ARM64</Platform>
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+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
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+    <RootNamespace>examples</RootNamespace>
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+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v141</PlatformToolset>
+    <WholeProgramOptimization Condition="'$(Configuration)'=='Release'">true</WholeProgramOptimization>
+  </PropertyGroup>
+  <Import Project="$(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" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <IntDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\$(ProjectName)\</IntDir>
+    <OutDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalIncludeDirectories>.;..\libusb;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>DPFP_THREADED;_CONSOLE;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <WarningLevel>Level3</WarningLevel>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Debug'">
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Release'">
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <ProgramDatabaseFile>$(TargetDir)$(ProjectName).pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <AdditionalDependencies>kernel32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+    <Link Condition="'$(Configuration)'=='Debug'">
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\examples\dpfp.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include=".\config.h" />
+    <ClInclude Include="..\libusb\libusb.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include=".\libusb_static_2017.vcxproj">
+      <Project>{349ee8f9-7d25-4909-aaf5-ff3fade72187}</Project>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
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+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/msvc/dpfp_threaded_2017.vcxproj.filters b/msvc/dpfp_threaded_2017.vcxproj.filters
new file mode 100644
index 0000000..6575978
--- /dev/null
+++ b/msvc/dpfp_threaded_2017.vcxproj.filters
@@ -0,0 +1,26 @@
+<?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>{4fc737f2-c7a5-4376-a066-2a32d752a2ff}</UniqueIdentifier>
+      <Extensions>c</Extensions>
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+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995381-89bd-4b04-88eb-625fbe52ebfb}</UniqueIdentifier>
+      <Extensions>h</Extensions>
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+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\libusb\libusb.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\examples\dpfp.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/msvc/dpfp_threaded_2019.vcxproj b/msvc/dpfp_threaded_2019.vcxproj
new file mode 100644
index 0000000..60f7e19
--- /dev/null
+++ b/msvc/dpfp_threaded_2019.vcxproj
@@ -0,0 +1,106 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|ARM">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|ARM64">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <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|ARM">
+      <Configuration>Release</Configuration>
+      <Platform>ARM</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|ARM64">
+      <Configuration>Release</Configuration>
+      <Platform>ARM64</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">
+    <ProjectName>dpfp_threaded</ProjectName>
+    <ProjectGuid>{8c7814a2-fd6e-4185-9ea0-8208119756d4}</ProjectGuid>
+    <RootNamespace>examples</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
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+    <WindowsSDKDesktopARM64Support>true</WindowsSDKDesktopARM64Support>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization Condition="'$(Configuration)'=='Release'">true</WholeProgramOptimization>
+  </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.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <IntDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\$(ProjectName)\</IntDir>
+    <OutDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalIncludeDirectories>.;..\libusb;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>DPFP_THREADED;_CONSOLE;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <WarningLevel>Level3</WarningLevel>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Debug'">
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Release'">
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <ProgramDatabaseFile>$(TargetDir)$(ProjectName).pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <AdditionalDependencies>kernel32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+    <Link Condition="'$(Configuration)'=='Debug'">
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\examples\dpfp.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include=".\config.h" />
+    <ClInclude Include="..\libusb\libusb.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include=".\libusb_static_2019.vcxproj">
+      <Project>{349ee8f9-7d25-4909-aaf5-ff3fade72187}</Project>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/msvc/dpfp_threaded_2019.vcxproj.filters b/msvc/dpfp_threaded_2019.vcxproj.filters
new file mode 100644
index 0000000..6575978
--- /dev/null
+++ b/msvc/dpfp_threaded_2019.vcxproj.filters
@@ -0,0 +1,26 @@
+<?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>{4fc737f2-c7a5-4376-a066-2a32d752a2ff}</UniqueIdentifier>
+      <Extensions>c</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995381-89bd-4b04-88eb-625fbe52ebfb}</UniqueIdentifier>
+      <Extensions>h</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include=".\config.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\libusb\libusb.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\examples\dpfp.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/msvc/libusb_2013.sln b/msvc/libusb_2013.sln
index 3429f9b..44fca6d 100644
--- a/msvc/libusb_2013.sln
+++ b/msvc/libusb_2013.sln
@@ -6,6 +6,10 @@
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-1.0 (dll)", "libusb_dll_2013.vcxproj", "{349EE8FA-7D25-4909-AAF5-FF3FADE72187}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dpfp", "dpfp_2013.vcxproj", "{8C7814A1-FD6E-4185-9EA0-8208119756D4}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dpfp_threaded", "dpfp_threaded_2013.vcxproj", "{8C7814A2-FD6E-4185-9EA0-8208119756D4}"
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fxload", "fxload_2013.vcxproj", "{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "getopt", "getopt_2013.vcxproj", "{AE83E1B4-CE06-47EE-B7A3-C3A1D7C2D71E}"
@@ -14,6 +18,8 @@
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "listdevs", "listdevs_2013.vcxproj", "{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sam3u_benchmark", "sam3u_benchmark_2013.vcxproj", "{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}"
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "stress", "stress_2013.vcxproj", "{53942EFF-C810-458D-B3CB-EE5CE9F1E781}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testlibusb", "testlibusb_2013.vcxproj", "{70828935-325B-4749-B381-0E55EF31AEE8}"
@@ -44,6 +50,22 @@
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|Win32.Build.0 = Release|Win32
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|x64.ActiveCfg = Release|x64
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|x64.Build.0 = Release|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.Build.0 = Debug|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|x64.ActiveCfg = Debug|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|x64.Build.0 = Debug|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|Win32.ActiveCfg = Release|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|Win32.Build.0 = Release|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|x64.ActiveCfg = Release|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|x64.Build.0 = Release|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.Build.0 = Debug|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|x64.ActiveCfg = Debug|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|x64.Build.0 = Debug|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|Win32.ActiveCfg = Release|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|Win32.Build.0 = Release|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|x64.ActiveCfg = Release|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|x64.Build.0 = Release|x64
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|Win32.ActiveCfg = Debug|Win32
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|Win32.Build.0 = Debug|Win32
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|x64.ActiveCfg = Debug|x64
@@ -76,6 +98,14 @@
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|Win32.Build.0 = Release|Win32
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|x64.ActiveCfg = Release|x64
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|x64.Build.0 = Release|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|Win32.Build.0 = Debug|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|x64.ActiveCfg = Debug|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|x64.Build.0 = Debug|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|Win32.ActiveCfg = Release|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|Win32.Build.0 = Release|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|x64.ActiveCfg = Release|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|x64.Build.0 = Release|x64
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|Win32.ActiveCfg = Debug|Win32
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|Win32.Build.0 = Debug|Win32
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|x64.ActiveCfg = Debug|x64
diff --git a/msvc/libusb_2015.sln b/msvc/libusb_2015.sln
index 6b514dd..8c86639 100644
--- a/msvc/libusb_2015.sln
+++ b/msvc/libusb_2015.sln
@@ -6,6 +6,10 @@
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-1.0 (dll)", "libusb_dll_2015.vcxproj", "{349EE8FA-7D25-4909-AAF5-FF3FADE72187}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dpfp", "dpfp_2015.vcxproj", "{8C7814A1-FD6E-4185-9EA0-8208119756D4}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dpfp_threaded", "dpfp_threaded_2015.vcxproj", "{8C7814A2-FD6E-4185-9EA0-8208119756D4}"
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fxload", "fxload_2015.vcxproj", "{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "getopt", "getopt_2015.vcxproj", "{AE83E1B4-CE06-47EE-B7A3-C3A1D7C2D71E}"
@@ -14,6 +18,8 @@
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "listdevs", "listdevs_2015.vcxproj", "{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sam3u_benchmark", "sam3u_benchmark_2015.vcxproj", "{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}"
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "stress", "stress_2015.vcxproj", "{53942EFF-C810-458D-B3CB-EE5CE9F1E781}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testlibusb", "testlibusb_2015.vcxproj", "{70828935-325B-4749-B381-0E55EF31AEE8}"
@@ -44,6 +50,22 @@
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|Win32.Build.0 = Release|Win32
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|x64.ActiveCfg = Release|x64
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|x64.Build.0 = Release|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.Build.0 = Debug|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|x64.ActiveCfg = Debug|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|x64.Build.0 = Debug|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|Win32.ActiveCfg = Release|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|Win32.Build.0 = Release|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|x64.ActiveCfg = Release|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|x64.Build.0 = Release|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.Build.0 = Debug|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|x64.ActiveCfg = Debug|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|x64.Build.0 = Debug|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|Win32.ActiveCfg = Release|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|Win32.Build.0 = Release|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|x64.ActiveCfg = Release|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|x64.Build.0 = Release|x64
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|Win32.ActiveCfg = Debug|Win32
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|Win32.Build.0 = Debug|Win32
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|x64.ActiveCfg = Debug|x64
@@ -76,6 +98,14 @@
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|Win32.Build.0 = Release|Win32
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|x64.ActiveCfg = Release|x64
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|x64.Build.0 = Release|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|Win32.Build.0 = Debug|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|x64.ActiveCfg = Debug|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|x64.Build.0 = Debug|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|Win32.ActiveCfg = Release|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|Win32.Build.0 = Release|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|x64.ActiveCfg = Release|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|x64.Build.0 = Release|x64
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|Win32.ActiveCfg = Debug|Win32
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|Win32.Build.0 = Debug|Win32
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|x64.ActiveCfg = Debug|x64
diff --git a/msvc/libusb_2017.sln b/msvc/libusb_2017.sln
index df0b2c2..3535138 100644
--- a/msvc/libusb_2017.sln
+++ b/msvc/libusb_2017.sln
@@ -6,6 +6,10 @@
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-1.0 (dll)", "libusb_dll_2017.vcxproj", "{349EE8FA-7D25-4909-AAF5-FF3FADE72187}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dpfp", "dpfp_2017.vcxproj", "{8C7814A1-FD6E-4185-9EA0-8208119756D4}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dpfp_threaded", "dpfp_threaded_2017.vcxproj", "{8C7814A2-FD6E-4185-9EA0-8208119756D4}"
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fxload", "fxload_2017.vcxproj", "{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "getopt", "getopt_2017.vcxproj", "{AE83E1B4-CE06-47EE-B7A3-C3A1D7C2D71E}"
@@ -14,6 +18,8 @@
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "listdevs", "listdevs_2017.vcxproj", "{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sam3u_benchmark", "sam3u_benchmark_2017.vcxproj", "{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}"
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "stress", "stress_2017.vcxproj", "{53942EFF-C810-458D-B3CB-EE5CE9F1E781}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testlibusb", "testlibusb_2017.vcxproj", "{70828935-325B-4749-B381-0E55EF31AEE8}"
@@ -64,6 +70,38 @@
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|Win32.Build.0 = Release|Win32
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|x64.ActiveCfg = Release|x64
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|x64.Build.0 = Release|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|ARM.ActiveCfg = Debug|ARM
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|ARM.Build.0 = Debug|ARM
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|ARM64.Build.0 = Debug|ARM64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.Build.0 = Debug|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|x64.ActiveCfg = Debug|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|x64.Build.0 = Debug|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|ARM.ActiveCfg = Release|ARM
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|ARM.Build.0 = Release|ARM
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|ARM64.ActiveCfg = Release|ARM64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|ARM64.Build.0 = Release|ARM64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|Win32.ActiveCfg = Release|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|Win32.Build.0 = Release|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|x64.ActiveCfg = Release|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|x64.Build.0 = Release|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|ARM.ActiveCfg = Debug|ARM
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|ARM.Build.0 = Debug|ARM
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|ARM64.Build.0 = Debug|ARM64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.Build.0 = Debug|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|x64.ActiveCfg = Debug|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|x64.Build.0 = Debug|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|ARM.ActiveCfg = Release|ARM
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|ARM.Build.0 = Release|ARM
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|ARM64.ActiveCfg = Release|ARM64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|ARM64.Build.0 = Release|ARM64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|Win32.ActiveCfg = Release|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|Win32.Build.0 = Release|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|x64.ActiveCfg = Release|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|x64.Build.0 = Release|x64
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|ARM.ActiveCfg = Debug|ARM
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|ARM.Build.0 = Debug|ARM
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|ARM64.ActiveCfg = Debug|ARM64
@@ -128,6 +166,22 @@
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|Win32.Build.0 = Release|Win32
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|x64.ActiveCfg = Release|x64
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|x64.Build.0 = Release|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|ARM.ActiveCfg = Debug|ARM
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|ARM.Build.0 = Debug|ARM
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|ARM64.Build.0 = Debug|ARM64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|Win32.Build.0 = Debug|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|x64.ActiveCfg = Debug|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|x64.Build.0 = Debug|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|ARM.ActiveCfg = Release|ARM
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|ARM.Build.0 = Release|ARM
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|ARM64.ActiveCfg = Release|ARM64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|ARM64.Build.0 = Release|ARM64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|Win32.ActiveCfg = Release|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|Win32.Build.0 = Release|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|x64.ActiveCfg = Release|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|x64.Build.0 = Release|x64
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|ARM.ActiveCfg = Debug|ARM
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|ARM.Build.0 = Debug|ARM
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|ARM64.ActiveCfg = Debug|ARM64
diff --git a/msvc/libusb_2019.sln b/msvc/libusb_2019.sln
index 6fea170..0a6a1c4 100644
--- a/msvc/libusb_2019.sln
+++ b/msvc/libusb_2019.sln
@@ -6,6 +6,10 @@
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-1.0 (dll)", "libusb_dll_2019.vcxproj", "{349EE8FA-7D25-4909-AAF5-FF3FADE72187}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dpfp", "dpfp_2019.vcxproj", "{8C7814A1-FD6E-4185-9EA0-8208119756D4}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dpfp_threaded", "dpfp_threaded_2019.vcxproj", "{8C7814A2-FD6E-4185-9EA0-8208119756D4}"
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fxload", "fxload_2019.vcxproj", "{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "getopt", "getopt_2019.vcxproj", "{AE83E1B4-CE06-47EE-B7A3-C3A1D7C2D71E}"
@@ -14,6 +18,8 @@
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "listdevs", "listdevs_2019.vcxproj", "{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sam3u_benchmark", "sam3u_benchmark_2019.vcxproj", "{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}"
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "stress", "stress_2019.vcxproj", "{53942EFF-C810-458D-B3CB-EE5CE9F1E781}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testlibusb", "testlibusb_2019.vcxproj", "{70828935-325B-4749-B381-0E55EF31AEE8}"
@@ -64,6 +70,38 @@
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|Win32.Build.0 = Release|Win32
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|x64.ActiveCfg = Release|x64
 		{349EE8FA-7D25-4909-AAF5-FF3FADE72187}.Release|x64.Build.0 = Release|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|ARM.ActiveCfg = Debug|ARM
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|ARM.Build.0 = Debug|ARM
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|ARM64.Build.0 = Debug|ARM64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.Build.0 = Debug|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|x64.ActiveCfg = Debug|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Debug|x64.Build.0 = Debug|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|ARM.ActiveCfg = Release|ARM
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|ARM.Build.0 = Release|ARM
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|ARM64.ActiveCfg = Release|ARM64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|ARM64.Build.0 = Release|ARM64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|Win32.ActiveCfg = Release|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|Win32.Build.0 = Release|Win32
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|x64.ActiveCfg = Release|x64
+		{8C7814A1-FD6E-4185-9EA0-8208119756D4}.Release|x64.Build.0 = Release|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|ARM.ActiveCfg = Debug|ARM
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|ARM.Build.0 = Debug|ARM
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|ARM64.Build.0 = Debug|ARM64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|Win32.Build.0 = Debug|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|x64.ActiveCfg = Debug|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Debug|x64.Build.0 = Debug|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|ARM.ActiveCfg = Release|ARM
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|ARM.Build.0 = Release|ARM
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|ARM64.ActiveCfg = Release|ARM64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|ARM64.Build.0 = Release|ARM64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|Win32.ActiveCfg = Release|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|Win32.Build.0 = Release|Win32
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|x64.ActiveCfg = Release|x64
+		{8C7814A2-FD6E-4185-9EA0-8208119756D4}.Release|x64.Build.0 = Release|x64
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|ARM.ActiveCfg = Debug|ARM
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|ARM.Build.0 = Debug|ARM
 		{9E166F7A-A793-9FB6-0A67-F0AED8AE8C88}.Debug|ARM64.ActiveCfg = Debug|ARM64
@@ -128,6 +166,22 @@
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|Win32.Build.0 = Release|Win32
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|x64.ActiveCfg = Release|x64
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Release|x64.Build.0 = Release|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|ARM.ActiveCfg = Debug|ARM
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|ARM.Build.0 = Debug|ARM
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|ARM64.Build.0 = Debug|ARM64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|Win32.Build.0 = Debug|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|x64.ActiveCfg = Debug|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Debug|x64.Build.0 = Debug|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|ARM.ActiveCfg = Release|ARM
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|ARM.Build.0 = Release|ARM
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|ARM64.ActiveCfg = Release|ARM64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|ARM64.Build.0 = Release|ARM64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|Win32.ActiveCfg = Release|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|Win32.Build.0 = Release|Win32
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|x64.ActiveCfg = Release|x64
+		{861CDD5F-59A2-4F34-957E-5C1AF98BE0A4}.Release|x64.Build.0 = Release|x64
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|ARM.ActiveCfg = Debug|ARM
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|ARM.Build.0 = Debug|ARM
 		{53942EFF-C810-458D-B3CB-EE5CE9F1E781}.Debug|ARM64.ActiveCfg = Debug|ARM64
diff --git a/msvc/sam3u_benchmark_2013.vcxproj b/msvc/sam3u_benchmark_2013.vcxproj
new file mode 100644
index 0000000..ad22cb6
--- /dev/null
+++ b/msvc/sam3u_benchmark_2013.vcxproj
@@ -0,0 +1,87 @@
+﻿<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" 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">
+    <ProjectName>sam3u_benchmark</ProjectName>
+    <ProjectGuid>{861cdd5f-59a2-4f34-957e-5c1af98be0a4}</ProjectGuid>
+    <RootNamespace>examples</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v120</PlatformToolset>
+    <WholeProgramOptimization Condition="'$(Configuration)'=='Release'">true</WholeProgramOptimization>
+  </PropertyGroup>
+  <Import Project="$(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" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <IntDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\$(ProjectName)\</IntDir>
+    <OutDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalIncludeDirectories>.;..\libusb;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CONSOLE;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <WarningLevel>Level3</WarningLevel>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Debug'">
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <MinimalRebuild>true</MinimalRebuild>
+      <Optimization>Disabled</Optimization>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Release'">
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <ProgramDatabaseFile>$(TargetDir)$(ProjectName).pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <AdditionalDependencies>kernel32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+    <Link Condition="'$(Configuration)'=='Debug'">
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\examples\sam3u_benchmark.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include=".\config.h" />
+    <ClInclude Include="..\libusb\libusb.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include=".\libusb_static_2013.vcxproj">
+      <Project>{349ee8f9-7d25-4909-aaf5-ff3fade72187}</Project>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/msvc/sam3u_benchmark_2013.vcxproj.filters b/msvc/sam3u_benchmark_2013.vcxproj.filters
new file mode 100644
index 0000000..0fee296
--- /dev/null
+++ b/msvc/sam3u_benchmark_2013.vcxproj.filters
@@ -0,0 +1,26 @@
+﻿<?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>{a19ef59c-c0d8-48a6-8d62-c158c7bac2fe}</UniqueIdentifier>
+      <Extensions>c</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{5a6ad543-f221-4cb6-addd-c9020acd752e}</UniqueIdentifier>
+      <Extensions>h</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include=".\config.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\libusb\libusb.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\examples\sam3u_benchmark.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/msvc/sam3u_benchmark_2015.vcxproj b/msvc/sam3u_benchmark_2015.vcxproj
new file mode 100644
index 0000000..4c85bb7
--- /dev/null
+++ b/msvc/sam3u_benchmark_2015.vcxproj
@@ -0,0 +1,87 @@
+﻿<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="14.0" 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">
+    <ProjectName>sam3u_benchmark</ProjectName>
+    <ProjectGuid>{861cdd5f-59a2-4f34-957e-5c1af98be0a4}</ProjectGuid>
+    <RootNamespace>examples</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v140</PlatformToolset>
+    <WholeProgramOptimization Condition="'$(Configuration)'=='Release'">true</WholeProgramOptimization>
+  </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.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <IntDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\$(ProjectName)\</IntDir>
+    <OutDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalIncludeDirectories>.;..\libusb;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CONSOLE;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <WarningLevel>Level3</WarningLevel>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Debug'">
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Release'">
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <ProgramDatabaseFile>$(TargetDir)$(ProjectName).pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <AdditionalDependencies>kernel32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+    <Link Condition="'$(Configuration)'=='Debug'">
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\examples\sam3u_benchmark.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include=".\config.h" />
+    <ClInclude Include="..\libusb\libusb.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include=".\libusb_static_2015.vcxproj">
+      <Project>{349ee8f9-7d25-4909-aaf5-ff3fade72187}</Project>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/msvc/sam3u_benchmark_2015.vcxproj.filters b/msvc/sam3u_benchmark_2015.vcxproj.filters
new file mode 100644
index 0000000..0fee296
--- /dev/null
+++ b/msvc/sam3u_benchmark_2015.vcxproj.filters
@@ -0,0 +1,26 @@
+﻿<?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>{a19ef59c-c0d8-48a6-8d62-c158c7bac2fe}</UniqueIdentifier>
+      <Extensions>c</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{5a6ad543-f221-4cb6-addd-c9020acd752e}</UniqueIdentifier>
+      <Extensions>h</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include=".\config.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\libusb\libusb.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\examples\sam3u_benchmark.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/msvc/sam3u_benchmark_2017.vcxproj b/msvc/sam3u_benchmark_2017.vcxproj
new file mode 100644
index 0000000..b40b2d3
--- /dev/null
+++ b/msvc/sam3u_benchmark_2017.vcxproj
@@ -0,0 +1,106 @@
+﻿<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|ARM">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|ARM64">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <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|ARM">
+      <Configuration>Release</Configuration>
+      <Platform>ARM</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|ARM64">
+      <Configuration>Release</Configuration>
+      <Platform>ARM64</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">
+    <ProjectName>sam3u_benchmark</ProjectName>
+    <ProjectGuid>{861cdd5f-59a2-4f34-957e-5c1af98be0a4}</ProjectGuid>
+    <RootNamespace>examples</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+    <WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>
+    <WindowsSDKDesktopARM64Support>true</WindowsSDKDesktopARM64Support>
+    <WindowsTargetPlatformVersion Condition="'$(Platform)'=='ARM' Or '$(Platform)'=='ARM64'">10.0.17763.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset>v141</PlatformToolset>
+    <WholeProgramOptimization Condition="'$(Configuration)'=='Release'">true</WholeProgramOptimization>
+  </PropertyGroup>
+  <Import Project="$(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" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <IntDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\$(ProjectName)\</IntDir>
+    <OutDir>$(ProjectDir)..\$(Platform)\$(Configuration)\examples\</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalIncludeDirectories>.;..\libusb;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CONSOLE;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <WarningLevel>Level3</WarningLevel>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Debug'">
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <ClCompile Condition="'$(Configuration)'=='Release'">
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <ProgramDatabaseFile>$(TargetDir)$(ProjectName).pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <AdditionalDependencies>kernel32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+    <Link Condition="'$(Configuration)'=='Debug'">
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
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new file mode 100644
index 0000000..0fee296
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new file mode 100644
index 0000000..bd6486c
--- /dev/null
+++ b/msvc/sam3u_benchmark_2019.vcxproj
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new file mode 100644
index 0000000..0fee296
--- /dev/null
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@@ -0,0 +1,26 @@
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