diff --git a/engine/Windows/VisualStudio/uniquake.vcxproj.filters b/engine/Windows/VisualStudio/uniquake.vcxproj.filters
index ab605bf..4490c1f 100644
--- a/engine/Windows/VisualStudio/uniquake.vcxproj.filters
+++ b/engine/Windows/VisualStudio/uniquake.vcxproj.filters
@@ -160,39 +160,15 @@
     <ClCompile Include="..\..\Quake\snd_dma.c">
       <Filter>engine</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\Quake\snd_flac.c">
-      <Filter>engine</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\Quake\snd_mem.c">
       <Filter>engine</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\Quake\snd_mikmod.c">
-      <Filter>engine</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\Quake\snd_mix.c">
       <Filter>engine</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\Quake\snd_mp3.c">
-      <Filter>engine</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\Quake\snd_opus.c">
-      <Filter>engine</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\Quake\snd_sdl.c">
       <Filter>engine</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\Quake\snd_umx.c">
-      <Filter>engine</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\Quake\snd_vorbis.c">
-      <Filter>engine</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\Quake\snd_wave.c">
-      <Filter>engine</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\Quake\snd_xmp.c">
-      <Filter>engine</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\Quake\strlcat.c">
       <Filter>engine</Filter>
     </ClCompile>
@@ -211,9 +187,6 @@
     <ClCompile Include="..\..\Quake\sv_user.c">
       <Filter>engine</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\Quake\sys_sdl_win.c">
-      <Filter>engine</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\Quake\view.c">
       <Filter>engine</Filter>
     </ClCompile>
@@ -235,6 +208,33 @@
     <ClCompile Include="..\..\UniQuake\uniquake.c">
       <Filter>uniquake</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\Quake\snd_flac.c">
+      <Filter>obsolete</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\Quake\snd_mikmod.c">
+      <Filter>obsolete</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\Quake\snd_mp3.c">
+      <Filter>obsolete</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\Quake\snd_opus.c">
+      <Filter>obsolete</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\Quake\snd_umx.c">
+      <Filter>obsolete</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\Quake\snd_vorbis.c">
+      <Filter>obsolete</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\Quake\snd_wave.c">
+      <Filter>obsolete</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\Quake\snd_xmp.c">
+      <Filter>obsolete</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\Quake\sys_sdl_win.c">
+      <Filter>obsolete</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\Quake\anorm_dots.h">
@@ -378,30 +378,6 @@
     <ClInclude Include="..\..\Quake\snd_codeci.h">
       <Filter>engine</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\Quake\snd_flac.h">
-      <Filter>engine</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\Quake\snd_mikmod.h">
-      <Filter>engine</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\Quake\snd_mp3.h">
-      <Filter>engine</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\Quake\snd_opus.h">
-      <Filter>engine</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\Quake\snd_umx.h">
-      <Filter>engine</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\Quake\snd_vorbis.h">
-      <Filter>engine</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\Quake\snd_wave.h">
-      <Filter>engine</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\Quake\snd_xmp.h">
-      <Filter>engine</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\Quake\spritegn.h">
       <Filter>engine</Filter>
     </ClInclude>
@@ -432,6 +408,30 @@
     <ClInclude Include="..\..\UniQuake\uniquake.h">
       <Filter>uniquake</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\Quake\snd_flac.h">
+      <Filter>obsolete</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\Quake\snd_mikmod.h">
+      <Filter>obsolete</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\Quake\snd_mp3.h">
+      <Filter>obsolete</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\Quake\snd_opus.h">
+      <Filter>obsolete</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\Quake\snd_umx.h">
+      <Filter>obsolete</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\Quake\snd_vorbis.h">
+      <Filter>obsolete</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\Quake\snd_wave.h">
+      <Filter>obsolete</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\Quake\snd_xmp.h">
+      <Filter>obsolete</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Filter Include="engine">
@@ -440,5 +440,8 @@
     <Filter Include="uniquake">
       <UniqueIdentifier>{43c1b6ff-c2ad-4168-87d5-d2e62a880e77}</UniqueIdentifier>
     </Filter>
+    <Filter Include="obsolete">
+      <UniqueIdentifier>{104b3b86-949e-4206-b5a9-f908b402d5a4}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
 </Project>
\ No newline at end of file