If you require a copy of Microsoft Visual C++ or MSDN documentation, you may visit the Stanford Compilers Download Page and follow the appropriate link.
The MSDN documentation is also available online in the msdn library at http://msdn.microsoft.com/library/. Finding the documentation for MFC is a bit of a process: Just click on the expandable contents on the left hand side of the website in the following order -- Visual Tools and Languages > Visual Studio 6.0 > Visual C and C++ 6.0 > Product Documentation > Microsoft Foundation Class Library and Templates > Microsoft Foundation Class Library.