唉,安装界面上号称如果有新版本MSDN的话也可以用,可是MSDN2004里又这么说:
The July 2004 Library is designed to be compatible as the fully integrated Help system for Visual Studio .NET. The July 2004 Library, and all future Libraries, will not integrate within Visual Studio 6.0 or earlier versions. If you are running Visual Studio 6.0 or earlier, the July 2004 Library may be used as a standalone product.