Just rebooted my system after installing a video driver update and the updated Klite codec pack and got this error. My sons computer has this same exact problem. Apparently he has checked and asked around the forums here and it seems know one actually knows what the problem is or a solution for it. I have included a screen shot of the NOD32 main window. I don't know what happened actually, I just rebooted my computer and poof the error. I am running Windows Vista 32-bit Ultimate. If you need any more info for troubleshooting purposes, I would be glad to post them.