http://msdn.microsoft.com/visualc/vctoolkit2003/
copy nmake.exe from .net SDK into bin directory
use the shortcut to start a cmd box with the environment variables set
Blog about it
http://blogs.msdn.com/brianjo/archive/2004/04/17/115335.aspx
Manual from Microsoft about nmake.exe
review from a linux point of view:
llg.cubic.org
If you have a Visual C++ 6 IDE, just copy over the bin, lib, and include directory, and compiling works. Debugging does not.
Free Visual C++ Toolkit