I have been using PC-Cillin 2000 for the last two years (free with my online Bank Account). However it does not run on XP.
You got it from The Halifax, yes?
Runs fine on Home & Professional.
Still getting (almost) daily updates too, and I know it works fine, because I've never been infected.
Of course, part of that might be because I use a proper email system (Novell's GroupWise 6 - Part of Small Business Suite 6 (I am a CNS, so can give SBS 6 away for peanuts incidentally)), rather than Outlook - but I wouldn't like to put it to the test!

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