Protecting Machines Part 2

I neglected to point to the free virus checker, AVG. This is only free for home users. They do offer discounts to non-profits on their paid product. It's worth asking.

I also neglected to mention a firewall. Win XP comes with one, if you have that system make sure to turn it on. The default setting is off. A better option is to download the free version of Zone Alarm.