Format of NetWare "Send Broadcast Message" request buffer:
Offset	Size	Description	)
 00h	WORD	length of following data (max 9Eh)
 02h	BYTE	00h (subfunction "Send Broadcast Message")
 03h	BYTE	number of connections (01h-64h)
 04h  N BYTEs	list of connections to receive broadcast message
	BYTE	length of message (01h-37h)
      N BYTEs	broadcast message (no control characters or characters > 7Eh)
SeeAlso: #01820