One last word. As I stated, it cannot be installed via a cookie. However, it can be installed via an email attachment or by someone hacking into your system. If you're on DSL, cable, etc. you are at a greater risk since you are "on" 24 hours. However, even those using dialup can get attacked. There is no excuse not to be using both anti-virus programs AND firewalls. And this particular worm, W32/QAZ, will only get you if you let it through an improperly protected system. If I may paraphrase an old poem,"May YOUR FIREWALL protect you from harm in all the dark places you must SURF."