MS-DOS 5.0a Upgrade README.TXT: Memory Management (85410)
The information in this article applies to:
• Microsoft MS-DOS operating system 5.0a
This article was previously published under Q85410
The following information was taken from the Microsoft MS-DOS 5.0a
Upgrade README.TXT file.
3. NOTES ON MEMORY MANAGEMENT
3.1 386MAX (5.11 or Earlier)
If you have used the SETVER command to report a different
version number to a program you are loading into the upper
memory area with 386LOAD.COM or MAXHI.COM, also use the
SETVER command to report that number to 386LOAD.COM or
MAXHI.COM. For information about the SETVER command, see
Chapter 14 of the MS-DOS User's Guide and Reference.
The new version number is reported to all programs loaded by
386LOAD.COM and MAXHI.COM.
MAXHI.COM programs supplied with versions of 386MAX earlier
than 5.0 are incompatible with MS-DOS 5.0.
3.2 All Computers Inc. Expanded-Memory Driver (ALLEMM4.SYS)
Version 2.5 or later of the All Computers expanded-memory
driver (ALLEMM4.SYS) is compatible with MS-DOS 5.0
HIMEM.SYS. Contact All Computers to get an updated driver.
3.3 Problems Loading into the Upper Memory Area
Some computers with bus master DMA controllers may not be
able to load device drivers or programs into the upper
memory area. Try adding a DEVICE=SMARTDRV.SYS command before
any DEVICEHIGH commands in your CONFIG.SYS file.
3.4 Intel Expanded-Memory Driver (EMM.SYS)
If you use Intel's EMM.SYS driver with Aboveboard, use
EMM.SYS version 4.0 revision D or later. If you have an
earlier version, contact Intel for a free upgrade.
3.5 XMAEM.SYS and XMA2EMS.SYS
Setup disables the CONFIG.SYS commands that load XMAEM.SYS
and XMA2EMS.SYS. If your system uses both drivers, replace
the commands with a DEVICE=EMM386.EXE command in your
If your system includes an XMA card, remove the REM command
that precedes the DEVICE=XMA2EMS.SYS command in your
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