Int 21 Fn 69FF  U - Cubit V4.00 - Uninstall                                [d]

   AX = 69FFh
   DX = CFBFh
   CX = EFCFh
   BX = CB00h (magic value)

Return: ES:BX -> CUBITR.EXE handler for INT 21
   CX = status
       2020h successful
       2222h failed

Note:  if DX is neither 0000h nor CFBFh on entry, some other code is executed

See Also: AX=69FFh/DX=0000h