INT 21 - LANtastic - GET MESSAGE PROCESSING FLAGS                               
	AX = 5F9Ah
Return: CF clear if successful
	    DL = bits describing processing of received messages (see #01731)
	CF set on error
	    AX = error code
SeeAlso: AX=5F9Bh,AX=5F9Ch,AX=5F9Dh


Bitfields for unsolicited message processing flags:
Bit(s)	Description	(Table 01731)
 0	beep before message is delivered
 1	deliver message to message service
 2	pop up message automatically (v3+)