I don't see that as an option, I understand from David that doing that isn't as simple as it sounds, feasable with a home computer, but CF's must have a huge memory capacity, storing possibly half a million or more items, it's virtually impossible to do logistically, take mine for example, AVG searches around 54,000 items & that's peanuts compared with some members PC's, perhaps members would like to tell us how many they have, how many do you?