diff --git a/project/vc2017/nvtt/nvtt.vcxproj b/project/vc2017/nvtt/nvtt.vcxproj
index baae56e..3f56080 100644
--- a/project/vc2017/nvtt/nvtt.vcxproj
+++ b/project/vc2017/nvtt/nvtt.vcxproj
@@ -421,9 +421,9 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\..\src\nvtt\BlockCompressor.h" />
-    <ClInclude Include="..\..\..\src\nvtt\CompressorDXT1.h" />
     <ClInclude Include="..\..\..\src\nvtt\CompressorDXT5_RGBM.h" />
     <ClInclude Include="..\..\..\src\nvtt\CubeSurface.h" />
+    <ClInclude Include="..\..\..\src\nvtt\icbc.h" />
     <ClInclude Include="..\..\..\src\nvtt\SingleColorLookup.h" />
     <ClInclude Include="..\..\..\src\nvtt\Surface.h" />
     <ClInclude Include="resource.h" />
@@ -461,7 +461,6 @@
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\..\src\nvtt\BlockCompressor.cpp" />
-    <ClCompile Include="..\..\..\src\nvtt\CompressorDXT1.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\CompressorDXT5_RGBM.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\CompressorETC.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\CubeSurface.cpp" />
@@ -474,6 +473,7 @@
     <ClCompile Include="..\..\..\src\nvtt\CompressorDX9.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\CompressorRGB.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\Context.cpp" />
+    <ClCompile Include="..\..\..\src\nvtt\icbc.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\InputOptions.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\nvtt.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\nvtt_wrapper.cpp" />
diff --git a/project/vc2017/nvtt/nvtt.vcxproj.filters b/project/vc2017/nvtt/nvtt.vcxproj.filters
index 3df42ba..aede857 100644
--- a/project/vc2017/nvtt/nvtt.vcxproj.filters
+++ b/project/vc2017/nvtt/nvtt.vcxproj.filters
@@ -46,8 +46,8 @@
     <ClInclude Include="..\..\..\src\nvtt\BlockCompressor.h" />
     <ClInclude Include="..\..\..\src\nvtt\SingleColorLookup.h" />
     <ClInclude Include="..\..\..\src\nvtt\CompressorDX11.h" />
-    <ClInclude Include="..\..\..\src\nvtt\CompressorDXT1.h" />
     <ClInclude Include="..\..\..\src\nvtt\CompressorDXT5_RGBM.h" />
+    <ClInclude Include="..\..\..\src\nvtt\icbc.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\..\src\nvtt\cuda\CudaCompressorDXT.cpp">
@@ -74,9 +74,9 @@
     <ClCompile Include="..\..\..\src\nvtt\Surface.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\BlockCompressor.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\TaskDispatcher.cpp" />
-    <ClCompile Include="..\..\..\src\nvtt\CompressorDXT1.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\CompressorDXT5_RGBM.cpp" />
     <ClCompile Include="..\..\..\src\nvtt\CompressorETC.cpp" />
+    <ClCompile Include="..\..\..\src\nvtt\icbc.cpp" />
   </ItemGroup>
   <ItemGroup>
     <CustomBuildStep Include="..\..\..\src\nvtt\cuda\ConvolveKernel.cu">
diff --git a/src/nvtt/CompressorETC.cpp b/src/nvtt/CompressorETC.cpp
index d3acc87..ec49b91 100644
--- a/src/nvtt/CompressorETC.cpp
+++ b/src/nvtt/CompressorETC.cpp
@@ -6,7 +6,7 @@
 #include "nvmath/Color.inl"
 #include "nvcore/Utils.h"    // clamp
 
-#define HAVE_RGETC 1
+#define HAVE_RGETC 0
 #define HAVE_ETCPACK 0 // Only enable in OSX for debugging.
 
 #if HAVE_RGETC