its called "Should I remove it?"
it puts a list of all programs on your PC and tells you a rating of how good the program is and whether you should uninstall it or not
if you click it you can get more info and it tells you specifically why you should remove it and gives details about the program and etc
I tried it and found not many things were bad but its really cool and those with slow PCs may benefit from trying it
free download
http://www.shouldiremoveit.com/index.aspxhere is a screenshot I took of mine