Int 2F Fn 7A21  C - Novell Netware - Dos Requester - Broadcast Callback    [N]

   AX = 7A21h
   CX = server connection (FFFFh if message from Personal NetWare user)
   interrupts disabled

Return: CX = 0000h if broadcast handled
   interrupts disabled

Note:  this function is only linked into INT 2F when INT 21/AH=DEh/DL=05h
     has been issued

See Also: AX=7A22h,AX=7A85h,INT 21/AH=DEh