Microsoft KB Archive/251052

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Article ID: 251052

Article Last Modified on 10/28/2006


  • Microsoft Exchange Server 5.5 Service Pack 3

This article was previously published under Q251052


If you run the Exchange Server Move Server Wizard on an Exchange Server version 5.5 Service Pack 3 computer to which a Store.exe fix version 5.5.2651.32 or later has been applied, the following error message may be displayed when the wizard tries to upgrade the private information store database:

Microsoft Exchange Move Server Wizard
An unexpected error has occurred while updating the Microsoft Exchange
Private Information Store
ID no: c1070451


This error message can occur if you upgrade the database by using a Store.exe program version 5.5.2651.32 or later. Earlier versions of the Move Server Wizard cannot process the extra data in the information store.

If the Store.exe program is version 5.5.2651.32 or later, and the Mvstore.dll file is not version 5.5.2651.73 or later, the Move Server Wizard stops responding.


If the error message in the "Symptoms" section of this article is displayed, you must install the latest information store fix after you restore the system from a tape backup and before you run the Move Server Wizard again.

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Exchange Server version 5.5 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:

Component: Move Server Wizard

File name Version
Mvstore.dll 5.5.2651.73


Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5 Service Pack 3.


The fix described in this article will only update the Mvstore.dll if Move Server Wizard has been installed.

The new Store.exe fixes are available for download from the Microsoft Download Center.

NOTE: One of the files is for the x86 platform and the other is for the Alpha platform; you only need both if you have both platforms.

The following files are available for download from the Microsoft Download Center:

For x86:

For Alpha:

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

NOTE: When you start this version of the information store, the information store databases are automatically upgraded to a new format. After you upgrade the databases, you can restore an earlier version of the Store.exe file on the server, but only if it is version 5.5.2651.32 or later. If you restore a Store.exe file earlier than version 5.5.2651.32 after you upgrade the database, you are no longer able to start the information store. For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

244976 XADM: Event ID 1197 and 1005 When Starting the Information Store

Additional query words: Q248838

Keywords: kbbug kbfix kbgraphxlinkcritical kbqfe KB251052