Int 2F Fn D000  - Zwmous - Installation Check                              [M]

   AX = D000h

Return: AX = 5A57h ("ZW") if installed
       BX = segment of resident code
Program: ZWmous is a shareware TSR by Zen Wu which permits the use of a mouse
     with many non-mouse applications by entering the letter under the
     mouse cursor on button presses

See Also: INT 33/AX=0003h