Microsoft KB Archive/71868

= MS-DOS 5 Upgrade README.TXT: Memory Management =

Article ID: 71868

Article Last Modified on 11/23/1999

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APPLIES TO


 * Microsoft MS-DOS 5.0 Standard Edition

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This article was previously published under Q71868



SUMMARY
The following information was taken from the Microsoft MS-DOS 5 Upgrade README.TXT file.



MORE INFORMATION
3. NOTES ON MEMORY MANAGEMENT

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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 &quot;MS-DOS User's Guide and Reference.&quot;

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 hard disk controllers, specifically 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 Installing HIMEM.SYS

Setup does not install HIMEM.SYS if another extended-memory manager is active. If you want to install HIMEM.SYS, copy it to your disk by doing the following:

1. Check the PACKING.LST file to determine which disk has the HIMEM.SY_ file. 2. Use the EXPAND command to expand and copy the file to your hard disk. Name the file HIMEM.SYS.

3.5 Intel Expanded-Memory Driver (EMM.SYS) --

Use the Intel expanded-memory driver NE or E switch when installing an Aboveboard driver. See your Aboveboard documentation for more information.

3.6 Phoenix BIOS and HIMEM.SYS --

If your system includes a Phoenix BIOS and MS-DOS 5.0 doesn't work correctly, try adding a /machine:1 or /machine:8 switch to the DEVICE=HIMEM.SYS command in your CONFIG.SYS file.

3.7 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 CONFIG.SYS file.

If your system includes an XMA card, remove the REM command that precedes the DEVICE=XMA2EMS.SYS command in your CONFIG.SYS file.

Additional query words: 5.00 noupd

Keywords: KB71868

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