Microsoft KB Archive/103521

= DEVICEHIGH Uses UMB from Previous DEVICEHIGH Command =

Article ID: 103521

Article Last Modified on 11/18/1999

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APPLIES TO


 * Microsoft MS-DOS 6.2 Standard Edition
 * Microsoft MS-DOS 6.22 Standard Edition

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This article was previously published under Q103521



SUMMARY
This information applies to both Microsoft DoubleSpace and Microsoft DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands and filenames.



SYMPTOMS
If you have a DEVICEHIGH statement without an explicit /L parameter, MS-DOS uses the same upper memory block (UMB) as the last DEVICEHIGH command that did have an explicit /L parameter. For example, if you have the following commands in your CONFIG.SYS file, RAMDRIVE.SYS loads into region two:

devicehigh/l:1=c:\dos\ansi.sys

devicehigh/l:2=c:\dos\dblspace.sys

devicehigh=c:\dos\ramdrive.sys

If you remove the DEVICEHIGH command for DBLSPACE.SYS, RAMDRIVE.SYS loads into region one.

NOTE: This example assumes both UMBs are large enough to hold RAMDRIVE.SYS.

Additional query words: 6.20

Keywords: KB103521

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