There was an update for Prevx last night. They apparently added Driver related file protection and Registry shell command hooking protection, gave it a new tray icon, fixed a few bugs including the error message when shutting down the service and a bug that would allow a DLL to be placed in the windows directory if it was copied there with a different extention and renamed, and it now takes a total of only 4mb of RAM! I'm not sure what all else has changed, but those are the ones I have been able to see. I believe there are some additional IE protection modules too, but I have to admit that I haven't paid a lot of attention to those, however I believe the IE toolbars protection is new. Prevx is really turning out to be something to be rivaled!