Prebuilt Windows binaries, CUDA

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Since version 2.4.4 you do not need to manually configure the prebuilt binaries anymore to use CUDA and openCL. The designated functions will check whether you have correct CUDA support and will use it if possible. Just be sure to add the GPU core module as library.

I am using prebuilt 2.4.4 binaries with CUDA 4.2 and it works perfectly on windows 7 x64.

cv::getBuildInformation() can tell you that. In my case it reads:

  Other third-party libraries:
    Use IPP:                     NO
    Use Eigen:                   NO
    Use TBB:                     NO
    Use OpenMP:                  NO
    Use GCD                      NO
    Use Concurrency              YES
    Use C=:                      NO
    Use Cuda:                    NO
    Use OpenCL:                  NO

So there's your answer.