diff --git a/java/jni/Android.mk b/java/jni/Android.mk
index e5d501f83..774c2015e 100644
--- a/java/jni/Android.mk
+++ b/java/jni/Android.mk
@@ -10,8 +10,6 @@ LOCAL_LDLIBS := -llog -latomic
 
 # ZeroTierOne SDK source files
 LOCAL_SRC_FILES := \
-	$(ZT1)/ext/lz4/lz4.c \
-	$(ZT1)/ext/http-parser/http_parser.c \
 	$(ZT1)/node/C25519.cpp \
 	$(ZT1)/node/Capability.cpp \
 	$(ZT1)/node/CertificateOfMembership.cpp \
@@ -36,8 +34,7 @@ LOCAL_SRC_FILES := \
 	$(ZT1)/node/Tag.cpp \
 	$(ZT1)/node/Topology.cpp \
 	$(ZT1)/node/Utils.cpp
-#	$(ZT1)/osdep/Http.cpp \
-#	$(ZT1)/osdep/OSUtils.cpp
+
 
 # JNI Files
 LOCAL_SRC_FILES += \
diff --git a/windows/WinUI/WinUI.csproj b/windows/WinUI/WinUI.csproj
index 4fcf1bc43..6b8013e0f 100644
--- a/windows/WinUI/WinUI.csproj
+++ b/windows/WinUI/WinUI.csproj
@@ -253,7 +253,7 @@
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="$(MSBuildExtensionsPath)\Microsoft\Expression\Blend\.NETFramework\v4.5\Microsoft.Expression.Blend.WPF.targets" />
   <PropertyGroup>
-    <PostBuildEvent>copy $(SolutionDir)\copyutil\bin\$(ConfigurationName)\copyutil.exe $(ProjectDir)\$(OutDir)\copyutil.exe</PostBuildEvent>
+    <PostBuildEvent>copy "$(SolutionDir)\copyutil\bin\$(ConfigurationName)\copyutil.exe" "$(ProjectDir)\$(OutDir)\copyutil.exe"</PostBuildEvent>
   </PropertyGroup>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/windows/ZeroTierOne/ZeroTierOne.vcxproj b/windows/ZeroTierOne/ZeroTierOne.vcxproj
index 6a2ca5202..7afdfb17b 100644
--- a/windows/ZeroTierOne/ZeroTierOne.vcxproj
+++ b/windows/ZeroTierOne/ZeroTierOne.vcxproj
@@ -66,7 +66,6 @@
     <ClCompile Include="..\..\one.cpp">
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">false</ExcludedFromBuild>
     </ClCompile>
-    <ClCompile Include="..\..\osdep\BackgroundResolver.cpp" />
     <ClCompile Include="..\..\osdep\Http.cpp" />
     <ClCompile Include="..\..\osdep\ManagedRoute.cpp" />
     <ClCompile Include="..\..\osdep\OSUtils.cpp" />
@@ -142,7 +141,6 @@
     <ClInclude Include="..\..\node\Topology.hpp" />
     <ClInclude Include="..\..\node\Utils.hpp" />
     <ClInclude Include="..\..\node\World.hpp" />
-    <ClInclude Include="..\..\osdep\BackgroundResolver.hpp" />
     <ClInclude Include="..\..\osdep\Binder.hpp" />
     <ClInclude Include="..\..\osdep\Http.hpp" />
     <ClInclude Include="..\..\osdep\ManagedRoute.hpp" />
diff --git a/windows/ZeroTierOne/ZeroTierOne.vcxproj.filters b/windows/ZeroTierOne/ZeroTierOne.vcxproj.filters
index ff3d48210..da673f61c 100644
--- a/windows/ZeroTierOne/ZeroTierOne.vcxproj.filters
+++ b/windows/ZeroTierOne/ZeroTierOne.vcxproj.filters
@@ -165,9 +165,6 @@
     <ClCompile Include="ZeroTierOneService.cpp">
       <Filter>Source Files\windows\ZeroTierOne</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\osdep\BackgroundResolver.cpp">
-      <Filter>Source Files\osdep</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\node\Path.cpp">
       <Filter>Source Files\node</Filter>
     </ClCompile>
@@ -398,9 +395,6 @@
     <ClInclude Include="ZeroTierOneService.h">
       <Filter>Header Files\windows\ZeroTierOne</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\osdep\BackgroundResolver.hpp">
-      <Filter>Header Files\osdep</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\node\BinarySemaphore.hpp">
       <Filter>Header Files\node</Filter>
     </ClInclude>