Recently I found interesting “feature” of fxc compiler (it’s a part of MS DirectX SDK). When you try to compile shaders, and path to source code contains non-Latin characters, you’ll get error like following: Error 1 The command ""%DXSDK_DIR%Utilities\bin\... /T vs_2_0 /O3 /Zpr /Fo "f:\импортер\SilverlightApp... "f:\импортер\SilverlightApp... "%DXSDK_DIR%Utilities\bin\x... /T ps_2_0 /O3 /Zpr /Fo "f:\импортер\SilverlightApp...