All PC-Topp DOS modules have been compiled in a new way that has left them visually unchanged, but has made them real Windows programs: The mouse can be used to control them, and it is okay to close them using the X in the upper right corner.
As a result, it will almost never happen anymore that Backup or Reorganisation cannot proceed because a DOS program was terminated incorrectly (the dreaded grey message doesn't appear anymore).
Old time users can continue as though nothing has changed (except that some programs are now slightly faster). But for beginners, the ability to use the mouse removes another obstacle to learning PC-Topp.