I haven't had a virus since '98 when I got hit with "stoned empire monkey." I was a real novice then and paid the "professionals" alot of money and that monkey kicked there butts too. Since then I found several antivirus programs to be top notch, but found running two or more in those days was CPU intensive. As far as Ad-Aware goes I've been using it with Nortons or Computer Associates Personal Innoculate and have never had a virus to invade me again. They try too. Every week I am hit with several attacks but they are stopped at the e-mail or d/l. But this again goes to which is better the Chevy or the Ford??