I use Computer Associates ETrust Internet Security Suite. When I bought my computer, I bought it online from a popular vendor (i configured the system and they built it), only the hardware was installed and I manually installed the things I wanted. The Suite includes a firewall, anti-virus protection and real-time email protection. It shuts down windows firewall and uses its own. When I first installed it, it would ask me for permissions to run the programs that you would normally not see. But after the learning mode process of the software, it is virtually carefree computing. One problem I have seen so far with this and compatibility is that Internet Explorer 7 comes with anti-virus and phishing detection, something that has a conflict with my protection system, so I just havent upgraded my explorer. besides, I have netscape and also firefox, so I can choose any to do what I want , when I want. Overall rating on this product, I would give it a ten, it detected malware in my mail as an attachement, when the mail server didnt even pick uip on it. the address of the where the malware came from is secur@megaman.com And the filename is Update_KB765_x86.exe