Magical Jelly Bean KeyFinder

Ever had to reinstall a program, but couldn’t find your product key? Magical Jelly Bean KeyFinder will search your PC for installed programs, and—if they have a product key—show them to you, so you can write it down and use it the next time you reinstall. Note: this one contains some toolbars and such upon installation, so be sure to use the custom installation to avoid the crapware.