Do not under any circumstances buy this awful product; I cannot believe McAfee, which has decent Firewall and AntiVirus software could bring out such a bad product; it's almost as annoying as the Spam that it doesn't filter.If you put this rubbish on your PC, it will take ages to filter all the messages each time you open Outlook Express and then it will put about 1% of any spam into your junk folder and a few that are not spam.