Kendall, do you mean Microsoft Outlook? Sorry, but most of the really popular worms attack Outlook because it's designed to be vulnerable.You can't prevent the monsters, only what they can do to you. In the 6 years I've been on the internet, I've never had a problem with a virus on my personal computer. I'm not bragging - just saying viruses can be avoided. I rarely open attachements, I have a text-only e-mail program, I have an up to date anti-virus program.