Visual Studio Express Setup

The CUDA Toolkit installer seems to look in C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\bin\amd64 for a file named "vcvars64.bat", and concludes that VS 2012 is not installed if its not there. Visual Studio Express 2012 doesnt create this directory or the file. We had success by copying the contents of directory:

C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\bin\x86_amd64 to
C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\bin\amd64

and then creating the file "vcvars64.bat" in the latter directory. The contents of "vcvars64.bat" can be:

CALL setenv /x64