As noted by a Wilder's member in another thread: "A/V's should include the option to "Scan my computer" with only the virus definitions that have been downloaded since they last on demand "Scan my computer". Think how much quicker such a scan would run!" This could be an option for the on-demand scanner and for the real-time modules as well. P.S. I have been most impressed with NOD's recent performance in the bleeding-edge submissions to Jotti, especially in just how effective the heuristics engine has become.