Heads up! If you go searching for Windows Presentation Foundation documentation in Visual Studio 2008 by choosing Contents off the Help menu, you might not find what you’re looking for. Yes, WPF is documented in the hierarchy when you drill into .NET Development, .NET Framework SDK, and .NET Framework. But you may need to set the Filtered by: field at the top of the Contents pane to (unfiltered) before Windows Presentation Foundation will appear. Sorry about the glitch! Happy hunting!