Hmmm,

winnet.exe please read this:

http://www.auditmypc.com/process/winnet.asp

You might also boot into safe mode and defragment your drive. I would also get Firefox, and use that rather than IE where possible. Get the script blocking and adblocking plug ins for it while you are at it.


Also get these and run them in safe mode:

http://www.emsisoft.com/en/software/free/
http://www.ewido.net/en/