Q90324: Workgroups Mail and Mail 3.0 Do Not Work with COMPAQ DOS 3.31

Article: Q90324
Product(s): Microsoft Windows 3.x Retail Product
Version(s): 
Operating System(s): 
Keyword(s): 
Last Modified: 17-DEC-2000

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Windows for Workgroups versions 3.1, 3.11 
-------------------------------------------------------------------------------

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          :  
Technology        : kbAudDeveloper kbWFWSearch kbWFW310 kbWFW311

=============================================================================