just looked over this again, can't say I know of a solution, especially if you need access to their profiles to make the changes... you could, theoretically maybe make two users and then edit one of the profiles settings so that it points to the same folders, registry, etc by creating hard-links to the other users folders/registry hive files... but it seems a bit dangerous (deleting the one account deletes the files from the other, too) and might cause other issues as well.