I have a quite similar problem, but the file is named DVD CREATIVE TRAY.EXE-1A855F0E.pf I've tried almost every spyware cleaner (ad-aware SE personal, Spybot, Bazooka and Spy Sweeper) But none of them seem to help.
It makes my computer so slow that even opening the firefox takes few minutes. I can make my computer temporarily faster by pressing ctrl + alt + del and closing all 3 or 4 processes called "Dvd creative tray.exe", but after some 30 or 40 minutes they all start again and my computer becomes slow again
Does anyone know how to fix this?