[holymoly]

Pressing the "ALT" key simultaneously with "F4" should close the topmost window.

I'm not sure what you mean when you say your "IP" uses McAfee. "IP" is usually an abbreviation for "Internet Protocol".

Reboot into safemode, and run your scans from there.

Also, you might want to try Spybot - Search & Destroy

[Former Fetus]

I'm not sure what you mean when you say your "IP" uses McAfee

Sorry, my mistake. I meant to type ISP.

[USNBandit]

Second on Spybot. I remember the wife getting a virus like this on the home machine. I was also able to download a removal tool specific to the virus from Norton.