I have been using Comodo Registry Cleaner for a couple of weeks. Seems to work well. I have had no problems. Get it at http://www.majorgeeks.com/Comodo_Registry_Cleaner_d6030.html
Just installed it on my lappy. I used an old 60GB drive I had laying around. I can tell that going from
xp to 7 is quite a shock. If you have Vista not so much. First impressions are good but got a lot of playing
to do. Install went well.