Ok, I've been trying to deal with this problem and nothing seems to fix it. It seems that it freezes my internet connection and does so to any other computer on the network.
I have checked using Norton (all updated), I already use Firefox, I used AdAware and Search and Destroy, I hit CTRL+ALT+DELETE and stop the system process of this file and then go on and delete it. Yet it keeps coming back... what can I do? It's extremely annoying because after some time it freezes my net connection. Ideas?