I was at the Comodo Site and they have their Comodo Internet Security Pro suite for only $4.99/year right now, and they give you a $500 Virus Free Guarantee, so if you get infected wile using their product they will pay up to $500 bucks to get it repaired. Now if thats not a guarantee I don't know what else is, this is how much they Trust in their product as do I. They know your not going to get a virus, if you do it would have been stupidity like allowing something you shouldn't have allowed like from pirated software. The only difference between this one and the free version is the $500 Virus-Free Guarantee* and GeekBuddy. I don't know how long this deal lasts?