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Microsoft KB Archive/169677

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Knowledge Base

Article ID: 169677

Article Last Modified on 10/28/2006


  • Microsoft Exchange Server 5.0 Standard Edition

This article was previously published under Q169677


After you upgrade a Microsoft Exchange Server version 4.0 that was running the Microsoft Exchange Directory Synchronization (DXA) service to Microsoft Exchange Server version 5.0, or you upgrade Windows NT or install a Windows NT Service Pack, the following error may appear in the Windows NT Event Viewer Application Event Log.

   EventID: 249
   Source: MSExchangeDX
   Type: Error
   Category: Startup
   Error -1201 occurred while trying to create a new database.


On systems that have recently been upgraded (either Microsoft Exchange or the operating system), the database indexes must be rebuilt to assure proper sort order. This is due to subtle changes in the Windows NT 4.0 Unicode sort order. The DXA does not rebuild Xdir.edb automatically and this causes the above error.


The underlying database in the \DXADATA subdirectory is a standard Exchange database. This database needs to be defragged after upgrading to Microsoft Exchange version 5.0 from Microsoft Exchange version 4.0. \ To do this, follow these steps:

  1. Stop the Microsoft Exchange Directory Synchronization service (DXA).
  2. Run EDBUTIL /d XDIR.EDB against the XDIR.EDB located in the \DXADATA directory.

    NOTE: In cases where the XDIR.EDB has grown to contain a great deal of data, step 2 above may fail with the following error:

    Encountered duplicate key in MapTable table.
    Operation terminated with error -1605.

    If this is incountered, the database must be repaired as well using:


  3. Start the Microsoft Exchange Directory Synchronization service (DXA).

After performing the defrag, the aforementioned error in the SYMPTOMS section will be logged one more time.


Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.0. This problem has been corrected in the latest U.S. Service Pack for Microsoft Exchange Server version 5.0. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces):



For additional information, please see the following article in the Microsoft Knowledge Base:

153658 XFOR: DXA Crashing with Event ID 268

Keywords: kbqfe kbhotfixserver kbbug kbfix KB169677