This is for my mom's computer at work. She works at an adult education center, and there are a lot of people that dont' know much about computers trying to learn about computers. This means that her computer is not what I would call secure. She needs an anti virus program that will be able to scan floppies when they're accessed, and monitor email attachments. The catch is that she has a 333 MHz Celeron with 64 MB of Ram running Win98SE. I got McAfee Virusscan 7.0 and installed it, but it slows the computer down to the point of not being usable. Is there a freeware version available online that wouldn't bog down the computer too much, but would still be effective? I've read through other posts, and come across AVG, AntiVir, and Avast. I don't know how any of these would affect the computer though, so If anyone has experience with any of these (or others) on an old machine, please share.