http://blogs.technet.com/b/seanearp/archive/2008/12/09/web-platform-installer.aspxScott Hanselman has already done a good job of covering it, but if you do any sort of web development, you know it can be a pain in the butt to download, install, and configure all of the necessary components (Visual Studio 2008, SQL Server 2008, IISen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)