MATLAB: C Compiler for MATLAB R2008a

compiler

Hello,
I am having some difficulties to get MATLAB R2008a to work with a "c compiler". What kind of c compilers that work with R2008a? I keep getting error:
>> mex yprime.c Error: Could not find the compiler "cl" on the DOS path. Use mex -setup to configure your environment properly.
Note: the machine I am using is Windows 64-bit.
Thanks,
Nak
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