Thanks for the input. Microsoft will not support transfer of any files other than files associated with a microsoft product. (Find that little pearl on their vista box.) My problem is that my wife stored a bunch of jpgs in XP documents and settings that weren't associated with any program . Vista does not have "documents and settings"; so the upgrade saw this as trash. Why my settings for AHP didn't transfer over is anyone's guess. Either way, I recovered most of the jpgs with Winundelete, which has saved my marriage. I will do a search for the .ahx extension you mentioned to see if I can restore my commands. If not, as far as you know, there is no way to download the .ahx commands directly from the interface back into my AHP program, so I wouldn't have to re-enter all the rooms and modules and commands?