Microsoft truly believes in its corporate motto - "to enable people and businesses around the world to realize their full potential".And now, to enable Visual Studio developers around the world to achieve their full potential, Microsoft is offering the offline version of MSDN Library (Yes, the gold mine itself!) as a free download from their website. The december 2006 version is available at MSDN Library for Visual Studio® Team Edition for Database Professionals (December 2006)
Note: If the link does not work, then please go to Microsoft Download centre and search for "MSDN Library".
Updated Link: MSDN Library for Visual Studio 2008