diff --git a/service/OneService.cpp b/service/OneService.cpp
index 298b2b26e..d9f63334c 100644
--- a/service/OneService.cpp
+++ b/service/OneService.cpp
@@ -2617,6 +2617,10 @@ class OneServiceImpl : public OneService
 			_concurrency = 1;
 			_cpuPinningEnabled = false;
 		}
+#else
+		_multicoreEnabled = false;
+		_concurrency = 1;
+		_cpuPinningEnabled = false;
 #endif
 
 #ifndef ZT_SDK
diff --git a/windows/ZeroTierOne/ZeroTierOne.vcxproj.filters b/windows/ZeroTierOne/ZeroTierOne.vcxproj.filters
index de9c97fec..1b1bb507a 100644
--- a/windows/ZeroTierOne/ZeroTierOne.vcxproj.filters
+++ b/windows/ZeroTierOne/ZeroTierOne.vcxproj.filters
@@ -294,6 +294,9 @@
     <ClCompile Include="..\..\node\Metrics.cpp">
       <Filter>Source Files\node</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\node\PacketMultiplexer.cpp">
+      <Filter>Source Files\node</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="resource.h">