Int 2F Fn 168F  - Windows95 - Close-awareness - Acknowledge Close          [W]

   AX = 168Fh
   DH = 02h
   DL = 00h (reserved)

Return: AX = status
       0000h successful
       else failed

Note:  once a Close command has been issued, no further keyboard input is
     available to the application until it calls this function to
     acknowledge the Close request

See Also: AX=168Fh/DH=00h,AX=168Fh/DH=03h