Microsoft KB Archive/246207

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Knowledge Base

Article ID: 246207

Article Last Modified on 10/27/2006


  • Microsoft Exchange Server 5.0 Standard Edition
  • Microsoft Exchange Server 5.5 Standard Edition

This article was previously published under Q246207


When you upgrade from Exchange Server 5.0 to Exchange Server 5.5 and the upgrade does not work, you may experience the following symptoms:

  • When you try to start the directory or information store, you receive the following error message:

    -1206, JET_errDatabaseCorrupted

  • When you try to run the Exchange Server 5.5 upgrade again, you receive the following error message:

    An unexpected error has occurred. ID No. c106fdda


When you receive a -1206 error when you are starting the information store or directory, the database may not actually be damaged, but may be the wrong version (for example, running an Exchange Server 5.0 database against an Exchange Server 5.5 computer). In the case of a failed upgrade, this may be because the databases were upgraded, at least partially, but the 5.5 files were never copied into the Exchsrvr folder.


To resolve this problem:

  1. Verify that this is a version issue by examining the database headers with the Exchange Server 5.5 Eseutil utility.
  2. Copy the Eseutil.exe and Ese.dll files from the Exchange Server 5.5 CD to the Exchsrvr\Mdbdata folder where the databases are located.
  3. From a command prompt, navigate to the Exchsrvr\Mdbdata folder, type the following commands, and press ENTER after each:

    eseutil.exe /mh priv.edb|find "State"


    eseutil.exe /mh pub.edb|find "State"

    Both commands should return:

    "State: Consistent"

NOTE: Exchange 2000 Service Pack 2 and later, do not report the database state as "Consistent" or "Inconsistent" but as "Clean Shutdown" or "Dirty Shutdown." The meaning of "Clean Shutdown" is the same as "Consistent", and the meaning of "Dirty Shutdown" is the same as "Inconsistent."

If the databases are not consistent, follow the instructions in the following Microsoft Knowledge Base article to bring the databases to a consistent state before continuing:

180009 XADM: Exchange 5.5 Upgrade Fails With ID No: c106fdda

After the databases are consistent, perform the following steps to resolve the issue:

  1. Note the database and log file paths for the Information Store service and Directory service.
  2. Rename the Dsadata and Mdbdata folders on each drive to Dsadata.old and Mdbdata.old, respectively.
  3. Create new Dsadata and Mdbdata folders on each drive.
  4. Uninstall Exchange Server.
  5. Run Exchange Server 5.0 Setup. Install it in a new site with the same organization and site names. DO NOT JOIN AN EXISTING SITE.
  6. If you had any connectors installed, such as the Internet Mail Service, make sure to install them during Setup by choosing to run a Complete/Custom Setup.
  7. After the 5.0 Setup finishes, run Exchange Server 5.5 Setup, and click Upgrade. When Setup finishes, stop the Exchange Server services.
  8. Run Performance Optimizer to put the databases and log files in their previous locations. Do not restart the services after the files are moved.
  9. Rename the Dsadata and Mdbdata folders on each drive to and, respectively.
  10. Create new Dsadata and Mdbdata folders on each drive.
  11. Copy the Dir.edb file from Dsadata.old to Dsadata. Copy the Priv.edb and Pub.edb files from Mdbdata.old to Mdbdata.
  12. Start the System Attendant and the Directory service.
  13. At a command prompt in the Exchsrvr\Bin folder, run isinteg -patch.
  14. Start the Information Store service and any remaining Exchange Server services. At this point, all services should be started.
  15. Start the Exchange Server Administrator program and verify that all connectors work.
  16. Make a full backup of Exchange Server.


For additional information on the -1206 error, click the article number below to view the article in the Microsoft Knowledge Base:

233295 XADM: Error -1206 Starting Database

Keywords: kbprb KB246207