Microsoft KB Archive/78597

= MS-DOS 5.0 or Later May Require a ROM BIOS Upgrade =

Article ID: 78597

Article Last Modified on 5/12/2003

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APPLIES TO


 * Microsoft MS-DOS 5.0 Standard Edition
 * Microsoft MS-DOS 5.0a
 * Microsoft MS-DOS 6.0 Standard Edition
 * Microsoft MS-DOS 6.2 Standard Edition
 * Microsoft MS-DOS 6.21 Standard Edition
 * Microsoft MS-DOS 6.22 Standard Edition

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This article was previously published under Q78597



SUMMARY
You may need to upgrade your computer ROM BIOS before installing MS-DOS 5.0 or later. The reasons vary from machine to machine, but they typically involve a bug or incompatibility in the existing ROM BIOS. In such cases, your previous MS-DOS version works because that version works around the bug (usually in OEM specific versions of MS-DOS) or because the previous version of MS-DOS did not require the functionality that is missing or incompatible.

Additional query words: 6.22 5.00 5.00a dosshell 6.00 6.20 doshell

Keywords: KB78597

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