Thanks, Susan. Tried to re-download it (both vwrsion, x32 and x64), but still get the same message when I open Reaper. When I download sws x32, my Norton Utility actual removes it because it is considered an "unsafe sight" with a file "threat." Don't know what to make of it. Guess I'll just do without this sws extension thing. Really don't need it, I guess. Cam't figure out how other people get to use it. Mike