Which behavior based anti-malware do you prefer and why? I'm debating if I want to keep PrevX 2.0 or convert over to ThreatFire. I currently own PrevX2.0 for Vista, but it's been in Beta for months and no update has been announced when the final Vista version will be available. (btw... they need a forum, email only support is lame). I basically paid for a beta which forces you to turn off UAC in order for it to work with Vista, which I'm not comfortable with. I'm interested in what you guys think of PrevX 2.0 and Threatfire. Or other anti-malware behavior blockers?