INT 21 - LANtastic v3+ - POP UP LAST RECEIVED MESSAGE AX = 5F9Ch CX = time to leave on screen in clock ticks DH = 0-based screen line on which to place message Return: CF clear if successful CF set on error AX = error code (0Bh) Notes: the original screen contents are restored when the message is removed the message will not appear, and an error will be returned, if the screen is in a graphics mode SeeAlso: AX=5F9Ah