What the hell...pt. 2

[GT40FIED]

Ok...so Stefan helped me work some bugs out of my computer, but now I'm stuck with a problem. After my computer's been on awhile the amount of processor being taken up gets higher and higher. Eventually it starts bouncing between 75% and 100%. After checking my task manager I notice that some program called svchost.exe is sucking up most of the processor...roughly between 55%-65% or so. At first I thought it was spyware so I threw everything I had at it. Xoftspy, Spybot S&D (v1.3...thanks Stefan), Norton AV, and Adaware. I mean I kicked that spyware's ass. Not only did I kick it's ass, but I killed it's father and raped it's mother. By that I mean every piece of that shit that is detectable to these 4 programs is GONE. But this program, svchost.exe, is still sucking up my processor like a cheap whore sucking dick for rock. I can't close it using the task manager, either. At first I thought it had something to do with my internet connection (and maybe it does), but even with my modem (cable, btw) unplugged it's still running pretty high and I still can't close it. What the hell do I do about this and more importantly, what the hell is this program?