Int B3 Fn 7D  - Zipkey - Request Pop Up                                    [U]

   AH = 7Dh
   BL = index number to simulate pressing a hotkey
       FFh for immediate popup with no playback on return

Return: CF set on error
       AL = error code
       FDh already busy with another request
       FEh illegal function
   CF clear if successful
       AX destroyed
       window popped up and was closed by the user

See Also: AH=70h