the paid version, imo, it promises much more then it delivers, although it can scan and seek out malware files, it has a tough time dealing with them and ridding of them. it is innodated with false positives, and picks up way to many defintions from other malware apps such as spybot and Adaware. imo, not worth the money....
I've been using the free X-Cleaner (current version is 126.96.36.1993) for awhile now with no problems. The paid version seems to offer so much more, I'm wondering if it is worth it.
I also run avast! 4.6 Home Edition, ZoneAlarm 6.0.631.003, WinPatrol 188.8.131.52, Webroot Spy Sweeper 4.0.3, Ad-Aware Personal SE 1.06, Spybot S&D 1.4, SpywareBlaster 3.4, and SpywareGuard LiveUpdate 2.2.
Does anyone else use either the free or paid version? Opinions welcome.