I would have thought the Windows 7 Explorer search would have made it into this build if the jump list did, all you have to do is delete this key...
Firefox in Windows 7 also isn't having everything cleared. For example I can enter some text into the search box on this website, run CCleaner and then click on the search box and press the down key to see what I last entered. If I run Firefox's history cleaner it will clear everything -- so what gives?