Microsoft Visual C++ Toolkit 2003
http://msdn.microsoft.com/visualc/vctoolkit2003/

* Microsoft C/C++ Optimizing Compiler and Linker. These are the same
compiler and linker that ship with Visual Studio .NET 2003
Professional!

* C Runtime Library and the C++ Standard Library, including the
Standard Template Library. These are the same static-link libraries
included with Visual Studio.

だそうだ。