I don't have an answer for your request, I do however have a suggestion for people with OS problems. Why not try Linux, I have used it for years with no anti-virus, firewall, or anything. I have never had a problem and it is BETTER than any MS OS and FREE. All (all but a handfull) apps for it are free as well, and as good or usually better than the MS alternative. The vast majority of virus's and malware infect only MS OS. The only precaution I use is a router between the computers and the modem. Malware on Macs and Linux are very few and far between. However, I did hear on the news the other day that a worm is infecting Mac machines. I also heard it is the first known to do so.