I have windows2000 professional os, when I use internet explorer, comp hangs while browsing and displays an error message missing library file fservice.exe
:confused: :confused: :confused:

From what I've been reading, that's an infection.

Run a virus and spyware/malware scan on your computer and see if that takes care of it.

More info:
fservice.exe Windows process - What is it?
fservice.exe - fservice, prorat trojan, Trojan Notice!