Is your other post regarding this same problem? AVG designates a part of their forum for their Anti-Rootkit application. Maybe posting there will get you the help you need?
Ive downloaded a program/application on grisoft called AVG anti-root kit it will detect hidden program(virus) from your system. I'ved used it already it has detected a hidden folder c:\Windows\system32\kdekv.exe .Im afraid to delete bec it might be a part of my system 32.