WinSpywareProtect rogue virus and adware.agent.bn

My cousin's laptop has recently been infected with rogue viruses. The virus installed WinSpywareProtect and Antivirus 2008 Pro. I was able to remove AV2008, but have been unsuccessful with WSP. The infected computer is having problems accessing websites. The only ones that are available are the sites that the malware is trying to scam him into purchasing a license to the bogus software.

The virus bombards us with virus alert popups. He has spyware doctor on his laptop and I was able to use that to remove all the other trojans, etc. But adware.agent.bn keeps coming back.

I tried manually removing the files and registry components but the files that sites tell me I should delete cannot be found.

The virus edits settings to make the control panel, my programs, and the all programs menu disappear. I do not know how to bring my programs and all programs back.

It keeps disabling Task Manager. I first edited the registry settings to disable remove task manager, but the virus keeps adapting. It know disables me from using the regedit command in normal mode.

Is there anything I can do? I have been unsuccessful at adding new removal software to the infected pc, and I do not have the technical knowledge to remove the thread manually.