A Question about software firewalls, to be precise. I am curious if anybody knows which one uses the least amount of system resources, RAM, CPU time, etc., on old Win 9x systems. Here is the list I've been perusing: http://www.mdgx.com/fw.htm Zone Alarm is probably one of the best overall protections, but seems a bit of a hog? I only really require basic functionality and ease of use. I can personally handle something a little more complex, as far as setting up rules and whatnot, but as a hobby, I help friends, etc, keep their old dinosaurs running tip-top, fix them when they have probs, etc. My machine needs lots of attention too But anyway, want one that just does the most basic stuff (stealth ports, etc), that a mostly computer configuration illiterate won't have too many problems with if they run a new app that accesses the internet. Also, I have been installing AVG free edition on most computers, is there another frequently updating free AV app that uses less resources if left running in the background?