For a command window, use the '''WinPython Command Prompt''' found in '''C:\WinPython27\WinPython-64bit-2.7.4.1''', which fixes path issues for finding python.
= Install isual Visual Studio Express 2012 for Windows Desktop =
[http://msdn.microsoft.com/en-us/library/vstudio/hs24szh9.aspx See versions of VS 2012 here].<br>
Take 32 bit compiling, since a horrible imprecision bug has been reported for 64 bit building. [https://gna.org/bugs/?20821 See bug #20821].