diff --git a/projects/openttd_vs100.vcxproj b/projects/openttd_vs100.vcxproj
index 27c0897a28..ac596c3ef4 100644
--- a/projects/openttd_vs100.vcxproj
+++ b/projects/openttd_vs100.vcxproj
@@ -654,6 +654,7 @@
     <ClInclude Include="..\src\os\windows\win32.h" />
     <ClInclude Include="..\src\music\win32_m.h" />
     <ClInclude Include="..\src\sound\win32_s.h" />
+    <ClInclude Include="..\src\unit_conversion.h" />
     <ClInclude Include="..\src\video\win32_v.h" />
     <ClInclude Include="..\src\window_func.h" />
     <ClInclude Include="..\src\window_gui.h" />
diff --git a/projects/openttd_vs100.vcxproj.filters b/projects/openttd_vs100.vcxproj.filters
index c8c74caeda..152cfa84d5 100644
--- a/projects/openttd_vs100.vcxproj.filters
+++ b/projects/openttd_vs100.vcxproj.filters
@@ -1191,6 +1191,9 @@
     <ClInclude Include="..\src\sound\win32_s.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\src\unit_conversion.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="..\src\video\win32_v.h">
       <Filter>Header Files</Filter>
     </ClInclude>
diff --git a/projects/openttd_vs140.vcxproj b/projects/openttd_vs140.vcxproj
index 88f7b44ddd..fa77e3f40c 100644
--- a/projects/openttd_vs140.vcxproj
+++ b/projects/openttd_vs140.vcxproj
@@ -671,6 +671,7 @@
     <ClInclude Include="..\src\os\windows\win32.h" />
     <ClInclude Include="..\src\music\win32_m.h" />
     <ClInclude Include="..\src\sound\win32_s.h" />
+    <ClInclude Include="..\src\unit_conversion.h" />
     <ClInclude Include="..\src\video\win32_v.h" />
     <ClInclude Include="..\src\window_func.h" />
     <ClInclude Include="..\src\window_gui.h" />
@@ -1288,6 +1289,10 @@
     <ClCompile Include="..\src\os\windows\win32.cpp" />
     <ClInclude Include="..\src\thread\thread.h" />
     <ClCompile Include="..\src\thread\thread_win32.cpp" />
+    <ClInclude Include="..\src\tracerestrict.h" />
+    <ClCompile Include="..\src\tracerestrict.cpp" />
+    <ClCompile Include="..\src\tracerestrict_gui.cpp" />
+    <ClCompile Include="..\src\saveload\tracerestrict_sl.cpp" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\media\openttd.ico" />
diff --git a/projects/openttd_vs140.vcxproj.filters b/projects/openttd_vs140.vcxproj.filters
index 06800ffdaf..152cfa84d5 100644
--- a/projects/openttd_vs140.vcxproj.filters
+++ b/projects/openttd_vs140.vcxproj.filters
@@ -1191,6 +1191,9 @@
     <ClInclude Include="..\src\sound\win32_s.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\src\unit_conversion.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="..\src\video\win32_v.h">
       <Filter>Header Files</Filter>
     </ClInclude>
@@ -3042,6 +3045,18 @@
     <ClCompile Include="..\src\thread\thread_win32.cpp">
       <Filter>Threading</Filter>
     </ClCompile>
+    <ClInclude Include="..\src\tracerestrict.h">
+      <Filter>Threading</Filter>
+    </ClInclude>
+    <ClCompile Include="..\src\tracerestrict.cpp">
+      <Filter>Threading</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\tracerestrict_gui.cpp">
+      <Filter>Threading</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\saveload\tracerestrict_sl.cpp">
+      <Filter>Threading</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\media\openttd.ico" />
diff --git a/projects/openttd_vs80.vcproj b/projects/openttd_vs80.vcproj
index f02bbcbd28..c1bc56ee9b 100644
--- a/projects/openttd_vs80.vcproj
+++ b/projects/openttd_vs80.vcproj
@@ -1890,6 +1890,10 @@
 				RelativePath=".\..\src\sound\win32_s.h"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\unit_conversion.h"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\video\win32_v.h"
 				>
diff --git a/projects/openttd_vs90.vcproj b/projects/openttd_vs90.vcproj
index 5048012b3e..2e3d456fa8 100644
--- a/projects/openttd_vs90.vcproj
+++ b/projects/openttd_vs90.vcproj
@@ -1887,6 +1887,10 @@
 				RelativePath=".\..\src\sound\win32_s.h"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\unit_conversion.h"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\video\win32_v.h"
 				>