I would like a technical perspective not a which one is better. Perhaps somebody with greater technical expertise than me could answer it. Mods - please don't close the thread, again, as it's a perfectly valid question. Can somebody explain to me the pros and cons of Heuristics versus F-Secure's Deepguard? What bases do they cover? How effective? Why you chose either? Thanks, Ian EDIT: I have removed the reference to a specific company's heuristics as the reference is superfluous to the discussion. I referenced the company because I am using their suite at the moment.