Norton 2012 turned off by "something" and will not restart

IE and Chrome were originally hi-jacked by Scour and other search engines preventing net access. I then noticed that my Norton Internet Security 2012 had been turned off and wouldn't restart. Tried the RNR tool. Worked fine until NIS opened and offered to do a full syatem scan. It didn't even get to the next screen and it had been disabled and would not restart.

A look at task manager showed a process running named

1847288051:21185329.exe    This process cannot be terminated.

A scan of all drives failed to find it.

Norton has thrown up 2 error messages 8404  101 and 8506  422

I have now lost all net access.

 

Any help would be appreciated.