window's firewall pop up warning

[freedom44]

I keep getting a window that says " Windows firewall detected activity of harmful software, on the window there are three links that take you to the same web site, trying to push there anti virus/spy ware software. Also on the window it gives a virus name that is suppose to be on my computer, every time the window pops up it gives a different virus name, actually it rotates through I think 7 different ones, example is "trojan-spy.win32.kelogger.aa" another is "Trojandownloader.win32.agent.bq, Only thing is, windows firewall is disabled, and even if it wasnt that seems like a strange message for a fire wall to give. I use AVG anti-virus and zone alarm for the firewall. I ran virus scans with zone alarm, avg and nothing is found, other than this strange pop up, my computer is running fine. My operating system is vista home premium. Any suggestions?