Complie C Language Code in MATLAB 2010a under Windows 7 (64 bit version)

How to complie C language code in MATLAB 2010a under Windows 7 (64 bit version)?

I have encountered an error message in MATLAB 2010a:

Error: Could not find the compiler "cl" on the DOS path.
Use mex -setup to configure your environment properly.

The following link is very useful: http://www.mathworks.com/support/solutions/en/data/1-6IJJ3L/?solution=1-6IJJ3L