MSDN Express Library for Visual Studio 2008 Express Editions with SP1 and Visual Studio 2008 Standard Edition
The Microsoft MSDN Express Library is an abridged version of the full Microsoft MSDN Library. It contains the most important content for new users of Visual Studio 2008 Express Editions with SP1 and Visual Studio 2008 Standard Edition to get familiar with both the Visual Studio Integrated Development Environment (IDE), Microsoft’s Development Languages (VB, C#, C++), and most of the core .NET Framework classes. The MSDN Express Library is just under 300 MB in size.

Download: http://go.microsoft.com/?linkid=9281113

MSDN Library for Visual Studio 2008
The complete Microsoft MSDN Library is also freely available for those who wish a more comprehensive set of documentation including all of the Win32 API, the complete .NET Framework documentation, as well as documentation for many other valuable Software Development Kits (SDKs). Click to download the full Microsoft MSDN Library as an ISO (2 GB) now.

Download: http://go.microsoft.com/?linkid=9291857