fatal error U1052: file 'ntwin32.mak' not found Stop.

I've received this messenge when I try to run a s-function archive in Simulink. what could be the problem? I'm using Matlab 2011a, windows 7 64 bits and as compiler visual studio 2010 SP1

Thanks

Best Regards

Francisco T.

Answer 1

[Walter Roberson]

Please see http://www.mathworks.com/support/solutions/en/data/1-CUMA71/index.html?product=SL