Ref: 11030043
Title: Unloading, Exiting, and Reloading Maxess TSRs
date: 8/1/89

Copyright 3Com Corporation, 1991.  All rights reserved.

The following information applies to Maxess version 1.3.0.


Unloading Maxess Resident Programs

unload ?          Displays the names of all currently resident
                  Maxess programs

unload MMS        Unloads Maxess Multi-tasking Scheduler

unload NBRI       Unloads NetBIOS Resident Services Program

unload APPC       Unloads Advanced Program to Program
                  Communications Program

unload 3270       Unloads 3270 program

unload 3270 /s    Unloads 3270 program and suspends 3270 sessions
                  to free up most of the memory required for 3270
                  emulation while maintaining active sessions
                  with the host.  The MMS and NBRI programs
                  should not be unloaded since they are required
                  to maintain suspended sessions; however, you
                  will not be prevented and an error message
                  will not be displayed if you do unload these
                  TSRs while there are suspended sessions.

unload Gateway    Unloads Gateway Resident Services Program
                  (GRSP)

unload *          Unloads all currently loaded Maxess programs
                  except GRSP

unload MMS NBRI 3270   Unloads all of the programs specified

*Note:  Under certain conditions the MMS program will not unload
and the message "Cannot unload MMS" will be displayed.  This
occurs when MMS detects a possible TSR conflict that causes
unloading to be unsafe.  (Any time MMS finds an interrupt vector
that does not match the saved values, it assumes that a program
has directly changed the vectors.  To avoid PC lockups, MMS willl
not unload itself.  This may occur often with TSRs.)  When this
happens, either continue to operate with MMS resident or reboot
the workstation.

The above information is on page 2-10 of the 3270 User's Guide.


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EXIT (Alt-x)

Use the EXIT key to unload the 3270 program from memory and return to
DOS.  If you are using the 3270 program when the hotkey is enabled, do
not use the Exit key unless you need to release memory for a large DOS
program.  Instead, use the 3270 hotkey (Alt pad+) to get to DOS.  This
keeps the 3270 program in memory and active.  You can return to your
3270 session by using the hotkey again.

If the 3270 program is resident and you need to unload it to release
memory, you can still keep your host sessions active.  Answer Yes to
the prompt: Suspend active sessions?  This is an option only if you
have active sessions.  If you answer No to the prompt, you will lose
your active sessions.  The 3270 sessions are maintained in a suspended
stat until you reload the 3270 program again.

*Note: Before suspending sessions, the 3270 program saves screen
information to disk in a file name 3270scrn.sav.  The file will be
placed in the directory indicated by the environment variable TMP if it
is specified.  (If TMP is not specified, the file is place in the
directory indicated by the environment variable Maxess_private.  If
this is not specified, the file is placed in the directory where the
3270 program executable is located.)  Screen retrieval is most
efficient when the TMP environment variable is set to a RAM disk or
other fast disk.  For example, if drive d: is a RAM disk, set the TMP
environment variable by adding the following line to the Autoexec.bat
file:

     set TMP=d:\

The above information is on page 5-17 of the 3270 User's Guide.


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Loading 3270 after EXITing (Alt-x)

3270 /H option allows the 3270 program to hotkey automatically when
reloaded.  This option is useful when you have exited with suspended
sessions.

3270 /P option causes printer initialization to be bypassed; otherwise,
normal printer initialization will occur and the printer settings will
return to default.  This option is useful when resuming a suspended
session and you want to keep the same printer settings that were in
effect.

3270 /l option specifies the log file for the program.

*Note:  All the above options are case sensitive.  You will get
"invalid argument list" if you type the character incorrectly.

The above information is on page 2-8 of the 3270 User's Guide.
