Hi, thanks for the information!
It worked.
BTW I believe that is important when evaluating an antivirus (that probably in Microsoft environments IS a vital piece of software, and contonuously running), for the conscious user, to know as much as possible the tasks that he will see appear and stay there.
As such one can understand cpu loads; sudden changes in disk access, sudden slowing of the system, etc.
In this way, one feels in control.
Thanks again.