diff --git a/ports/win32/Microsoft Visual Studio/bacnet-stack/bacnet-stack.vcxproj b/ports/win32/Microsoft Visual Studio/bacnet-stack/bacnet-stack.vcxproj
index a3d9c97d..8be7b02c 100644
--- a/ports/win32/Microsoft Visual Studio/bacnet-stack/bacnet-stack.vcxproj	
+++ b/ports/win32/Microsoft Visual Studio/bacnet-stack/bacnet-stack.vcxproj	
@@ -145,6 +145,7 @@
     <ClCompile Include="..\..\..\..\src\bacnet\basic\sys\fifo.c" />
     <ClCompile Include="..\..\..\..\src\bacnet\basic\sys\filename.c" />
     <ClCompile Include="..\..\..\..\src\bacnet\basic\sys\keylist.c" />
+    <ClCompile Include="..\..\..\..\src\bacnet\basic\sys\linear.c" />
     <ClCompile Include="..\..\..\..\src\bacnet\basic\sys\mstimer.c" />
     <ClCompile Include="..\..\..\..\src\bacnet\basic\sys\ringbuf.c" />
     <ClCompile Include="..\..\..\..\src\bacnet\basic\sys\sbuf.c" />
@@ -330,6 +331,7 @@
     <ClInclude Include="..\..\..\..\src\bacnet\basic\sys\filename.h" />
     <ClInclude Include="..\..\..\..\src\bacnet\basic\sys\key.h" />
     <ClInclude Include="..\..\..\..\src\bacnet\basic\sys\keylist.h" />
+    <ClInclude Include="..\..\..\..\src\bacnet\basic\sys\linear.h" />
     <ClInclude Include="..\..\..\..\src\bacnet\basic\sys\mstimer.h" />
     <ClInclude Include="..\..\..\..\src\bacnet\basic\sys\platform.h" />
     <ClInclude Include="..\..\..\..\src\bacnet\basic\sys\ringbuf.h" />
diff --git a/ports/win32/Microsoft Visual Studio/bacnet-stack/bacnet-stack.vcxproj.filters b/ports/win32/Microsoft Visual Studio/bacnet-stack/bacnet-stack.vcxproj.filters
index bcefb120..db072a3f 100644
--- a/ports/win32/Microsoft Visual Studio/bacnet-stack/bacnet-stack.vcxproj.filters	
+++ b/ports/win32/Microsoft Visual Studio/bacnet-stack/bacnet-stack.vcxproj.filters	
@@ -31,9 +31,6 @@
     <Filter Include="Source Files\ports">
       <UniqueIdentifier>{1c0fbcda-2c87-4204-8259-e2607f9509d1}</UniqueIdentifier>
     </Filter>
-    <Filter Include="Source Files\ports\win">
-      <UniqueIdentifier>{dafdfbc0-5a48-441c-8682-4d5423832141}</UniqueIdentifier>
-    </Filter>
     <Filter Include="Source Files\src\bacnet\basic\bbmd">
       <UniqueIdentifier>{d9370b4d-c98c-48f1-8eda-ae7777b9c061}</UniqueIdentifier>
     </Filter>
@@ -49,6 +46,9 @@
     <Filter Include="Source Files\src\bacnet\basic\binding">
       <UniqueIdentifier>{4221463c-bad1-4ec5-b4b3-4dfbea8345d3}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Source Files\ports\win32">
+      <UniqueIdentifier>{dafdfbc0-5a48-441c-8682-4d5423832141}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\..\..\src\bacnet\abort.c">
@@ -571,16 +571,19 @@
       <Filter>Source Files\src\bacnet\basic\binding</Filter>
     </ClCompile>
     <ClCompile Include="..\..\datetime-init.c">
-      <Filter>Source Files\ports\win</Filter>
+      <Filter>Source Files\ports\win32</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\..\src\bacnet\basic\sys\linear.c">
+      <Filter>Source Files\src\bacnet\basic\sys</Filter>
     </ClCompile>
     <ClCompile Include="..\..\bip-init.c">
-      <Filter>Source Files</Filter>
+      <Filter>Source Files\ports\win32</Filter>
     </ClCompile>
     <ClCompile Include="..\..\mstimer-init.c">
-      <Filter>Source Files</Filter>
+      <Filter>Source Files\ports\win32</Filter>
     </ClCompile>
     <ClCompile Include="..\..\rs485.c">
-      <Filter>Source Files</Filter>
+      <Filter>Source Files\ports\win32</Filter>
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
@@ -858,10 +861,10 @@
       <Filter>Source Files\src\bacnet\basic\sys</Filter>
     </ClInclude>
     <ClInclude Include="..\..\bacport.h">
-      <Filter>Source Files\ports\win</Filter>
+      <Filter>Source Files\ports\win32</Filter>
     </ClInclude>
     <ClInclude Include="..\..\rs485.h">
-      <Filter>Source Files\ports\win</Filter>
+      <Filter>Source Files\ports\win32</Filter>
     </ClInclude>
     <ClInclude Include="..\..\..\..\src\bacnet\basic\bbmd\h_bbmd.h">
       <Filter>Source Files\src\bacnet\basic\bbmd</Filter>
@@ -1160,10 +1163,13 @@
     <ClInclude Include="..\..\..\..\src\bacnet\basic\binding\address.h">
       <Filter>Source Files\src\bacnet\basic\binding</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\bacnet\basic\sys\linear.h">
+      <Filter>Source Files\src\bacnet\basic\sys</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\readme.MD">
-      <Filter>Source Files\ports\win</Filter>
+      <Filter>Source Files\ports\win32</Filter>
     </None>
   </ItemGroup>
 </Project>
\ No newline at end of file