McAfee Personal Firewall (and VirusScan) Update Harassment

I am continually being harassed on my Dell 8400/XP Pro by the McAfee Security Center which sends a pop up every session saying that my subscription to Personal Firewall Plus 6 has expired, and I can either execute a link to Renew My Subscription or Continue What I Was Doing. This gets old very fast. (In fact, it used to do it for VS 9, but I bought and installed an OEM version of VS 10 for ten bucks on ebay with some hardware, and hopefully I have killed the VS messages for 365 days).

I DO NOT want to renew my Personal Firewall Plus (why would a firewall need an update or a subscription anyway?).

Does anyone know what program causes the pop-up? Is it removable without damaging anything else?

Shouldn't we all be able to live in peace without our own system pop-ups?

The services I am running, relating to McAfee, include the following exes: mcagent, mcdetect, mcTskshd, mcshield, mcupdmgr, mcupdui, McVSEscn, mcvsshld, oasclnt, mpfagent, mpfservice, and mpftray. I think it might be one of the last 3, but I don't know what service each executes.

Does anyone have a clue?