You may sometimes be left with entries in your Add/Remove Programs listing for programs that no longer exist on your hard drive. There is a great app for managing this list called MyUninstaller. This free app can be downloaded from the link below:MyUninstaller Download Link
It is small, fast, and better yet, free. Unzip it to it's own folder, run it, and select the entry you want to remove. Then right click on it, and choose delete to remove the selected entry.