Microsoft KB Archive/157003

= PC Adm: The Microsoft Mail Administrator Program and MS-DOS Virtual Machines =

Article ID: 157003

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Mail for PC Networks 3.2
 * Microsoft Mail for PC Networks 3.5

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This article was previously published under Q157003



SUMMARY
Running the Microsoft Mail Administrator program under an MS-DOS virtual machine (VDM) is supported; however, just as with any application being run under a VDM, it is susceptible to causing corruption to the postoffice under certain situations.



MORE INFORMATION
Any networked MS-DOS application that relies on the sophisticated file I/O caching of a VDM could potentially experience file corruption because of one of the following:
 * Closing the VDM without properly closing down the MS-DOS application running in its window.
 * Ungracefully shutting the power down to a computer that has a running MS-DOS application under a VDM.
 * Faulty networking hardware or network card device drivers that do not properly handle I/O requests from the network and return improper values to the MS-DOS application.

When you run the Microsoft Mail Administrator program under a VDM in Microsoft Windows, Windows for Workgroups, Windows 95, or Windows NT, the following rules should be followed to prevent any corruption to the Microsoft Mail 3.x postoffice database files:
 * Always shut down the Administrator program by first pressing the ESCAPE (ESC) key, and then pressing Y, and then closing the VDM window.
 * If you are experiencing problems performing normal Administrator functions under a VDM, try performing the same task in a VDM on another workstation or from a native MS-DOS workstation.
 * If the problems persist, contact Microsoft Technical Support.

Keywords: KB157003

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