I run openCV code with VS2010 Windows 7 Ultimate cpu intel CORE i3 but it show error The program can't start because tbb_dubug.dll is missing from your computer. I download Intel TBB 4.0 and I copy all file from folder tbb40_233oss/bin/intel64/vc10 to paste in folder opencv/build/common/tbb/intel64/vc10, But when I run my code it show same error . So, I copy tbb_debug.dll to paste in Debug folder in my Project, But when I run my code it show error TestHist\\Debug\\tbb_debug.dll is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support. How to install tbb_dedug.dll in VS2010 Windows 7 ?