diff --git a/configure.ac b/configure.ac
index b596eae..5b16c68 100644
--- a/configure.ac
+++ b/configure.ac
@@ -178,14 +178,6 @@ windows)
 	AC_DEFINE([POLL_NFDS_TYPE],[unsigned int],[type of second poll() argument])
 	AC_DEFINE([WINVER], 0x0501, [Oldest Windows version supported])
 	AC_DEFINE([_WIN32_WINNT], 0x0501, [Oldest Windows version supported])
-
-	AC_ARG_ENABLE([usbdk],
-		[AC_HELP_STRING([--enable-usbdk], [use UsbDk Windows backend [default=no]])],
-		[], [enable_usbdk=no])
-		if test "x$enable_usbdk" = xyes; then
-		    AC_DEFINE(USE_USBDK, 1, [Use UsbDk Windows backend])
-		fi
-		AC_SUBST(USE_USBDK)
 	;;
 haiku)
 	AC_DEFINE(OS_HAIKU, 1, [Haiku backend])
@@ -208,7 +200,6 @@ AM_CONDITIONAL(OS_HAIKU, test "x$backend" = xhaiku)
 AM_CONDITIONAL(THREADS_POSIX, test "x$threads" = xposix)
 AM_CONDITIONAL(CREATE_IMPORT_LIB, test "x$create_import_lib" = xyes)
 AM_CONDITIONAL(USE_UDEV, test "x$enable_udev" = xyes)
-AM_CONDITIONAL(USE_USBDK, test "x$enable_usbdk" = xyes)
 if test "x$threads" = xposix; then
 	AC_DEFINE(THREADS_POSIX, 1, [Use POSIX Threads])
 fi
diff --git a/libusb/version_nano.h b/libusb/version_nano.h
index fbe5f76..51876c7 100644
--- a/libusb/version_nano.h
+++ b/libusb/version_nano.h
@@ -1 +1 @@
-#define LIBUSB_NANO 11275
+#define LIBUSB_NANO 11276
diff --git a/msvc/ddk_build.cmd b/msvc/ddk_build.cmd
index 48d7804..f11ff88 100644
--- a/msvc/ddk_build.cmd
+++ b/msvc/ddk_build.cmd
@@ -3,28 +3,20 @@
 ::# you can pass the following arguments (case insensitive):
 ::# - "DLL" to build a DLL instead of a static library
 ::# - "/MT" to build a static library compatible with MSVC's /MT option (LIBCMT vs MSVCRT)
-::# - "USBDK" to build with UsbDk backend
 
 if Test%BUILD_ALT_DIR%==Test goto usage
 
 ::# process commandline parameters
 set TARGET=LIBRARY
 set STATIC_LIBC=
-set WITH_USBDK=
 set version=1.0
 set PWD=%~dp0
 set BUILD_CMD=build -bcwgZ -M2
 
-:more_args
-
 if "%1" == "" goto no_more_args
 ::# /I for case insensitive
 if /I Test%1==TestDLL set TARGET=DYNLINK
 if /I Test%1==Test/MT set STATIC_LIBC=1
-if /I Test%1==TestUSBDK set WITH_USBDK=1
-
-shift
-goto more_args
 
 :no_more_args
 
diff --git a/msvc/libusb_2013.sln b/msvc/libusb_2013.sln
index c9ab819..0b4e9f1 100644
--- a/msvc/libusb_2013.sln
+++ b/msvc/libusb_2013.sln
@@ -12,10 +12,6 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-1.0 (dll)", "libusb_
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-1.0 (static)", "libusb_static_2013.vcxproj", "{349EE8F9-7D25-4909-AAF5-FF3FADE72187}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-usbdk-1.0 (dll)", "libusb_usbdk_dll_2013.vcxproj", "{F53A5974-2319-48EB-A67B-27933AEDF14A}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-usbdk-1.0 (static)", "libusb_usbdk_static_2013.vcxproj", "{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}"
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "listdevs", "listdevs_2013.vcxproj", "{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "stress", "stress_2013.vcxproj", "{53942EFF-C810-458D-B3CB-EE5CE9F1E781}"
@@ -72,22 +68,6 @@ Global
 		{349EE8F9-7D25-4909-AAF5-FF3FADE72187}.Release|Win32.Build.0 = Release|Win32
 		{349EE8F9-7D25-4909-AAF5-FF3FADE72187}.Release|x64.ActiveCfg = Release|x64
 		{349EE8F9-7D25-4909-AAF5-FF3FADE72187}.Release|x64.Build.0 = Release|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|Win32.ActiveCfg = Debug|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|Win32.Build.0 = Debug|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|x64.ActiveCfg = Debug|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|x64.Build.0 = Debug|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|Win32.ActiveCfg = Release|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|Win32.Build.0 = Release|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|x64.ActiveCfg = Release|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|x64.Build.0 = Release|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|Win32.ActiveCfg = Debug|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|Win32.Build.0 = Debug|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|x64.ActiveCfg = Debug|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|x64.Build.0 = Debug|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|Win32.ActiveCfg = Release|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|Win32.Build.0 = Release|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|x64.ActiveCfg = Release|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|x64.Build.0 = Release|x64
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Debug|Win32.ActiveCfg = Debug|Win32
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Debug|Win32.Build.0 = Debug|Win32
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Debug|x64.ActiveCfg = Debug|x64
diff --git a/msvc/libusb_2015.sln b/msvc/libusb_2015.sln
index 7ca65f9..3e333ba 100644
--- a/msvc/libusb_2015.sln
+++ b/msvc/libusb_2015.sln
@@ -12,10 +12,6 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-1.0 (dll)", "libusb_
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-1.0 (static)", "libusb_static_2015.vcxproj", "{349EE8F9-7D25-4909-AAF5-FF3FADE72187}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-usbdk-1.0 (dll)", "libusb_usbdk_dll_2015.vcxproj", "{F53A5974-2319-48EB-A67B-27933AEDF14A}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-usbdk-1.0 (static)", "libusb_usbdk_static_2015.vcxproj", "{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}"
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "listdevs", "listdevs_2015.vcxproj", "{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "stress", "stress_2015.vcxproj", "{53942EFF-C810-458D-B3CB-EE5CE9F1E781}"
@@ -72,22 +68,6 @@ Global
 		{349EE8F9-7D25-4909-AAF5-FF3FADE72187}.Release|Win32.Build.0 = Release|Win32
 		{349EE8F9-7D25-4909-AAF5-FF3FADE72187}.Release|x64.ActiveCfg = Release|x64
 		{349EE8F9-7D25-4909-AAF5-FF3FADE72187}.Release|x64.Build.0 = Release|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|Win32.ActiveCfg = Debug|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|Win32.Build.0 = Debug|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|x64.ActiveCfg = Debug|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|x64.Build.0 = Debug|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|Win32.ActiveCfg = Release|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|Win32.Build.0 = Release|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|x64.ActiveCfg = Release|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|x64.Build.0 = Release|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|Win32.ActiveCfg = Debug|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|Win32.Build.0 = Debug|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|x64.ActiveCfg = Debug|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|x64.Build.0 = Debug|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|Win32.ActiveCfg = Release|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|Win32.Build.0 = Release|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|x64.ActiveCfg = Release|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|x64.Build.0 = Release|x64
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Debug|Win32.ActiveCfg = Debug|Win32
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Debug|Win32.Build.0 = Debug|Win32
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Debug|x64.ActiveCfg = Debug|x64
diff --git a/msvc/libusb_2017.sln b/msvc/libusb_2017.sln
index b1ddcec..04c43cd 100644
--- a/msvc/libusb_2017.sln
+++ b/msvc/libusb_2017.sln
@@ -12,10 +12,6 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-1.0 (dll)", "libusb_
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-1.0 (static)", "libusb_static_2017.vcxproj", "{349EE8F9-7D25-4909-AAF5-FF3FADE72187}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-usbdk-1.0 (dll)", "libusb_usbdk_dll_2017.vcxproj", "{F53A5974-2319-48EB-A67B-27933AEDF14A}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libusb-usbdk-1.0 (static)", "libusb_usbdk_static_2017.vcxproj", "{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}"
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "listdevs", "listdevs_2017.vcxproj", "{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "stress", "stress_2017.vcxproj", "{53942EFF-C810-458D-B3CB-EE5CE9F1E781}"
@@ -72,22 +68,6 @@ Global
 		{349EE8F9-7D25-4909-AAF5-FF3FADE72187}.Release|Win32.Build.0 = Release|Win32
 		{349EE8F9-7D25-4909-AAF5-FF3FADE72187}.Release|x64.ActiveCfg = Release|x64
 		{349EE8F9-7D25-4909-AAF5-FF3FADE72187}.Release|x64.Build.0 = Release|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|Win32.ActiveCfg = Debug|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|Win32.Build.0 = Debug|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|x64.ActiveCfg = Debug|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Debug|x64.Build.0 = Debug|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|Win32.ActiveCfg = Release|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|Win32.Build.0 = Release|Win32
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|x64.ActiveCfg = Release|x64
-		{F53A5974-2319-48EB-A67B-27933AEDF14A}.Release|x64.Build.0 = Release|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|Win32.ActiveCfg = Debug|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|Win32.Build.0 = Debug|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|x64.ActiveCfg = Debug|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Debug|x64.Build.0 = Debug|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|Win32.ActiveCfg = Release|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|Win32.Build.0 = Release|Win32
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|x64.ActiveCfg = Release|x64
-		{0B3D86CF-5D70-41A9-B391-A2E7C5C969ED}.Release|x64.Build.0 = Release|x64
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Debug|Win32.ActiveCfg = Debug|Win32
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Debug|Win32.Build.0 = Debug|Win32
 		{F4938DB0-3DE7-4737-9C5A-EAD1BE819F87}.Debug|x64.ActiveCfg = Debug|x64
diff --git a/msvc/libusb_sources b/msvc/libusb_sources
index 56960f9..d497711 100644
--- a/msvc/libusb_sources
+++ b/msvc/libusb_sources
@@ -12,12 +12,8 @@ USE_LIBCMT=1
 USE_MSVCRT=1
 !ENDIF
 
-!IFDEF WITH_USBDK
-BACKEND_DEFINES="/DUSE_USBDK"
-!ENDIF
-
 INCLUDES=..;..\..\msvc;$(DDK_INC_PATH)
-C_DEFINES= $(C_DEFINES) $(LIBUSB_DEFINES) $(BACKEND_DEFINES) /DDDKBUILD
+C_DEFINES= $(C_DEFINES) $(LIBUSB_DEFINES) /DDDKBUILD
 
 # http://jpassing.com/2009/10/21/ltcg-issues-with-the-win7amd64-environment-of-wdk-7600/
 # prevents the following error when using the 64 bit static lib with Visual Studio 2010:
diff --git a/msvc/libusb_usbdk_dll_2013.vcxproj b/msvc/libusb_usbdk_dll_2013.vcxproj
deleted file mode 100644
index 6d9018f..0000000
--- a/msvc/libusb_usbdk_dll_2013.vcxproj
+++ /dev/null
@@ -1,178 +0,0 @@
-<?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>libusb-usbdk-1.0 (dll)</ProjectName>
-    <ProjectGuid>{F53A5974-2319-48EB-A67B-27933AEDF14A}</ProjectGuid>
-    <RootNamespace>libusbdll</RootNamespace>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <CharacterSet>Unicode</CharacterSet>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <PlatformToolset>v120</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v120</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <CharacterSet>Unicode</CharacterSet>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <PlatformToolset>v120</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v120</PlatformToolset>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
-  <ImportGroup Label="ExtensionSettings">
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup>
-    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
-    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(SolutionDir)..\$(Platform)\$(Configuration)\dll\</OutDir>
-    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(SolutionDir)..\$(Platform)\$(Configuration)\dll\libusb-usbdk-1.0\</IntDir>
-    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(SolutionDir)..\$(Platform)\$(Configuration)\dll\</OutDir>
-    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(SolutionDir)..\$(Platform)\$(Configuration)\dll\libusb-usbdk-1.0\</IntDir>
-    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(SolutionDir)..\$(Platform)\$(Configuration)\dll\</OutDir>
-    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(SolutionDir)..\$(Platform)\$(Configuration)\dll\libusb-usbdk-1.0\</IntDir>
-    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(SolutionDir)..\$(Platform)\$(Configuration)\dll\</OutDir>
-    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(SolutionDir)..\$(Platform)\$(Configuration)\dll\libusb-usbdk-1.0\</IntDir>
-    <TargetName Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">libusb-usbdk-1.0</TargetName>
-    <TargetName Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">libusb-usbdk-1.0</TargetName>
-    <TargetName Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">libusb-usbdk-1.0</TargetName>
-    <TargetName Condition="'$(Configuration)|$(Platform)'=='Release|x64'">libusb-usbdk-1.0</TargetName>
-  </PropertyGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <ClCompile>
-      <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>.;..\libusb;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_WIN32;_DEBUG;_LIB;_CRT_SECURE_NO_WARNINGS;USE_USBDK;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
-      <WarningLevel>Level4</WarningLevel>
-      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-    </ClCompile>
-    <Link>
-      <OutputFile>$(OutDir)libusb-usbdk-1.0.dll</OutputFile>
-      <ModuleDefinitionFile>..\libusb\libusb-1.0.def</ModuleDefinitionFile>
-      <EmbedManagedResourceFile>libusb-1.0.rc;%(EmbedManagedResourceFile)</EmbedManagedResourceFile>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <Midl>
-      <TargetEnvironment>X64</TargetEnvironment>
-    </Midl>
-    <ClCompile>
-      <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>.;..\libusb;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_WIN32;_WIN64;_DEBUG;_CRT_SECURE_NO_WARNINGS;USE_USBDK;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
-      <WarningLevel>Level4</WarningLevel>
-      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-    </ClCompile>
-    <Link>
-      <OutputFile>$(OutDir)libusb-usbdk-1.0.dll</OutputFile>
-      <ModuleDefinitionFile>..\libusb\libusb-1.0.def</ModuleDefinitionFile>
-      <EmbedManagedResourceFile>libusb-1.0.rc;%(EmbedManagedResourceFile)</EmbedManagedResourceFile>
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\ No newline at end of file