I am very interested in VirusChaser, and Dr Web's technology. I have used Dr Web in the past and very much like it and it's corprate philosophy. I purchased VirusChaser, the so called Dr Web clone, via ebay (as discussed here). I must admit that I am rather ignorant when it come to this particular AV and I am hoping those with more knowledge and/or experience can chime in here; that's you Firecat. Does VirusChaser use a modified version of the heuristics engine? Does it use Dr Web bases? If so then what then is the difference between the two, other that GUI and quarantine. Do they offer similair protection? From what I can see, on my system, VirusChaser uses an insanely low amout of resources, much lower that Dr Web (if that is possible). Also, the VirusChaser website says that it's patterns are updated 10+ times per day. Is that accurate? I guess I'm looking for a downside here. Although, I do not care much for the interface.