I start using it few months ago but I would like to have your opinon about it. I feel it adds some security but I would like more information before I pay for it, positive or negative. I emailed the author to make some suggestions in the past and he wants to improve it. The main idea of it is good but needs some improvement I think. http://www.winhki.com/en/winhkiav1.htm The program is the whole complement to your virus scanner. The great advantage is, that WinHKI Anti-Virus checks the background of Windows whether there are suspicious modifications. ->finds with the system check new still unknown viruses, worms and trojans -> you don't need a virus database -> it checks the complete system for suspicious modifications -> whole complement to your virus scanner -> extremely fast, you only need about 0,4 MB on the hard disk -> works completely selfcontinuously in the background and announces suspicious files Thanks a lot !!!