I don't want to intend to conflict with you asgard_lloyd, but you should throw away that program.
It must be a program that does specific software in the cracking.
Even if you want some high performance anti-virus, it is necessary to stop the act that becomes the evil of the enterprise.
(Read the software licence.)
This means it may be make losing of the motivation of people who is developing software.
And, it is same with other software too.
We introduced some free anti virus softwares(AVG Anti-virus, AVAST! Antivirus and McAfee) in this thread, so don't worry about your money.
You can check more detail about that software in those site.
(But even if they are free, you must observe the software licence and registration in web.)
11-Feb-2006