Format of DR Multiuser DOS queue descriptor:
Offset	Size	Description	)
 00h  2 WORDs	internal use, initialize to zeros
 04h	WORD	queue flags (see #04043)
 06h  8 BYTEs	queue name
 0Eh	WORD	length of message
 10h	WORD	number of messages
 12h  4 WORDs	internal use, initialize to zeros
 1Ah	WORD	offset in system area of buffer for messages