Ghost Doc Visual Studio XML documentation tool
There is a nifty little tool called ghost doc for VS that can auto generate the XML documentation used in VS. It rocks and I use it all the time. If you don't have it you should download it here . It works in VS 03, 05, and 08. After installing it you can simply right click a methods and select document this or for the keyboard power users use a keyboard shortcut you can define to auto document.