MAQ
                 INLAND STEEL'S queueing and routing software

This software provides the ability to transfer data between processes similar
to VMS mailboxes with the addition of a global section file that saves
individual messages during a reboot or crash. This software runs on both VMS
and RSX11M-plus Systems (the RSX11M-plus software is being distributed to DECUS
separately).  There is also a routing application (MA_ROUTER) that allows
messages to be transmitted over DECnet to a MA_ROUTER on other VAX or PDP-11
systems.  The MA_ROUTER allows both multiple message id's (i.e. individual
queues) to be connected to a particular MA_ROUTER and also allows connections
to many MA_ROUTERS on various systems. 

The queueing mechanism uses user-written system service routines to read and/or
write to the global section file in memory.  These routines are located in the
SSDISP.EXE image and are installed with privileges on the system.  The messages
are checkpointed to disk by a detached process (QUEUE_CHKR) that is notified by
the application program from calls to the user-written system service routines.
If checkpointing to disk is not necessary, QUEUE_CHKR can be rewritten to
exit after it creates the global section file in memory. 

Neal Schmidt
Systems Technology Department
Inland Steel Company
3210 Watling St. m.s. 5-000
E. Chicago, IN	46312

Earl Lakia has agreed to help answer questions concerning this software.
He can be reached by telephone at (219) 464-7212.