Microsoft KB Archive/90324

= Workgroups Mail and Mail 3.0 Do Not Work with COMPAQ DOS 3.31 =

Article ID: 90324

Article Last Modified on 10/10/2003

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APPLIES TO


 * Microsoft Windows for Workgroups 3.1
 * Microsoft Windows for Workgroups 3.11

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This article was previously published under Q90324



SUMMARY
Workgroups Mail and Microsoft Mail 3.0 do not function properly with COMPAQ MS-DOS 3.31 due to changes made to the MS-DOS kernel that affect file-sharing capabilities. This is only true for COMPAQ MS-DOS 3.31. Workgroups Mail and Mail 3.0 work properly with MS-DOS 3.3 or later. COMPAQ is the only OEM that shipped MS-DOS 3.31.

For Mail to function properly, upgrade to MS-DOS 5.0 or later.



MORE INFORMATION
Workgroups Mail and Mail 3.0 do byte-range locking of their .MMF files. This enables Mail to lock only portions of the .MMF file rather then the entire file.

Changes made to the COMPAQ MS-DOS 3.31 kernel do not enable this to function properly.

COMPAQ MS-DOS 3.31 is manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

Additional query words: 3.10 3.11 msmail 3rdparty

Keywords: KB90324

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