If you want to uninstall a VSI file for Visual Studio .NET 2005, its kinda hard to figure out what is going on. I didn't find anyway any way in the Control Panel applet. I couldn't find it in the Visual Studio Directory. It was driving me up the wall. Well, it appears the files are stored in the "My Documents\Visual Studio 2005\Templates\Project Templates" directory. Delete the file and its uninstalled. Life is better.