I have had it on my computer for a couple of years or so. It doesn't seem to do much of anything, at least judging by its own reports, which list only two BHO changes, both of them legitimate and which I allowed, probably via another AS malware alert from perhaps Spybot or Spy Sweeper. No doubt this question about SG comes up from time to time. I know that unlike other AS applications, SG is mostly or entirely heuristic based rather than definition based in terms of its protection, but nevertheless, with version 2.2 now over three years old and new forms of malware constantly evolving, how much value does SG have at present? I see no particular reason to delete it, since it appears to run very light, but still, what is your opinion of how much system protection it offers these days?