Resolving Event ID 9340 in Exchange 2003: Comprehensive Guide

Event ID 9340 is logged by Windows Event Viewer whenever a Cached Exchange Mode (CEM) server fails.
Servers that are CEM-capable are disconnected or removed from the server.

  • Event ID 9340 in Exchange 2003 is an error that occurs when users perform certain operations.
  • The cause of the Event ID 9340 error is usually due to corrupted files or outdated system components.
  • The error can be resolved by repairing the Exchange component, running ESEUTIL, or installing the relevant update.

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    Run the Exchange Setup tool

    1. Open the Event Viewer and select the Application logs option.
    2. Right-click on Microsoft Exchange Server 2003 and then click on Properties.
      Right-click on Microsoft Exchange Server 2003 and then click on Properties.
    3. Check the Log on failure and Logon failure options, and click on the Advanced tab.
    4. Click on the Error messages tab, and check Log all errors.
    5. Click Apply, and then click on OK.

    Run the Setup tool as an administrator

    1. Open the Exchange Management Console > right-click the Organization > select Properties.
    2. Select the Security tab > check the Read permission checkbox > click OK.
    3. Click on Start > select Run > type msiexec /i /qn “\Setup.exe” /A /p /i /quiet
      Click on Start > select Run > type msiexec /i /qn "<path to Exchange 2003 setup media>\Setup.exe" /A /p <server's name> /i /quiet

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  • Run the Setup tool as Exchange 2003

    1. Right-click Exchange 2003 in the Programs section.
    2. Select the Run as administrator option.
    3. Then double-click Setup.exe to open the Setup wizard.
      Then double-click Setup.exe to open the Setup wizard.
    4. Press the Next button to proceed.
    5. Select the Repair option on the Installation Type screen.
    6. Press the Next button.
    7. Then select the Exchange server you want to repair, and click Next.
    8. Press the Next button.
    9. Select the Repair option on the Repair screen.
      Select the Repair option on the Repair screen.
    10. Press the Next button.

    Roll back Exchange 2003 Service Pack 2

    1. Run the Microsoft Support and Recovery Tools
      Run the Uninstall Exchange 2003 SP1 and SP2 tool
      Run the Exchange 2003 Uninstallation wizard
      Run the Microsoft Exchange Server 2003 Service Pack 2 Uninstall wizard
      Run the Exchange 2003 Setup wizard
    2. Run the Microsoft Exchange 2003 Uninstall Wizard
      Run the Microsoft Exchange Management Console
      Run the Microsoft Exchange System Manager
    3. Run the Microsoft Exchange System Manager Setup Wizard
      Run the Microsoft Exchange System Manager Setup Wizard
    4. Reinstall Exchange 2003
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    Perform an IIS reset

    1. Launch Command prompt as administrator, and type the below lines one by one and press Enter after each:
      net stop w3wp
    2. net stop http
      net stop http
    3. net stop iis
    4. net stop w3svc
    5. net stop httpsvc
    6. net stop rpconnt
    7. net stop w3wp
      net stop w3wp
    8. net stop iis
    9. net stop w3svc
    10. net stop httpsvc
    11. Restart the Windows Mail service.
    12. Run the Exchange Management Console.
    13. Navigate to the Database Availability Group – Mailbox.
    14. Expand the Database Availability Group, and then select the Mailbox Server.
      Expand the Database Availability Group, and then select the Mailbox Server.
    15. Click on the Properties option.
    16. Select the Clients tab.
    17. Select the Client Access server, and then click on Properties.
    18. Check the Client Access Server Status, and then ensure that it is Running.
      Check the Client Access Server Status, and then ensure that it is Running.
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