What is the Visual C++ Toolkit 2003?
The Visual C++ Toolkit is a free edition of Microsoft’s professional Visual C++ optimizing compiler and standard libraries – the same optimizing compiler and standard libraries that ship in Visual Studio .NET 2003 Professional!

Are there any restrictions on how I use the Visual C++ Toolkit?
In general, no. You may use the Toolkit to build C++ -based applications, and you may redistribute those applications. Please read the End User License Agreement (EULA), included with the Toolkit, for complete details.