I have computer problems due to the Anti Virus trojan attacking my computer, twice. My anti virus software didn't pick it up fast enough and nither did another anti virus program I use as an alternate. A couple of anti virus programs were destroyed in my computer by this anti virus trojan including the Windows OneCare registry cleaner. Can't download over the old version and can't get rid of the old version. I found this free registry cleaner that doesn't have a certificate and used it anyway to clean my registry. My computer was moving really slow so I had to do something. Eusing asks for a donation I guess but I skipped that and clicked the scan button anyway and the program appeared to clean my registry and now my computer seems to be moving alot faster. I should have done this review before using it but I'm cheap and backwards so I'm asking people who have used Eusing to give me some feedback now. Seems like a decent program. I would like to hear from others who know the site and have used it. Thanks Everyone!