In Visual Studio .NET 2003, the default was for the help system to appear within Visual Studio. We’ve changed it in Whidbey to appear externally from Visual Studio. This is extremely useful for multi-monitor setups.
If you want to get the help system back inside Visual Studio, go to Tools – Options – Help – General, and use the “Show Help using:” combo box to select how you want to view the help system. Unfortunately, you’ll have to relaunch Visual Studio for the changes to take effect.
Happy Visual Studio’ing!