A specific DLL cannot be loaded

 

Topic Last Modified: 2007-11-16

The Microsoft Exchange Server 2007 Management Pack for Operations Manager monitors the Windows Application log on computers that are running Exchange Server 2007 and generates this alert when the event or events specified in the following Details table are logged.

To learn more about this event, do one or more of the following:

  • Review the description of the event that includes the variables specific to your environment. From the Operator Console, select this alert, and then click the Properties tab.

  • Review all events that have been logged that meet the criteria of this Operations Manager alert. From the Operator Console, click the Events tab, and then double-click the event in the list for which you want to review the event description.

Details

Product Name

Exchange

Product Version

8.0 (Exchange Server 2007)

Event ID

9002;9005

Event Source

MSExchangeSA

Alert Type

Warning

MOM Rule Path

Microsoft Exchange Server/Exchange 2007/Mailbox/System Attendant

MOM Rule Name

A specific DLL cannot be loaded. Review the error in the event description for details about the specific DLL that could not be loaded.

Explanation

This Operations Manager alert indicates that a DLL file, which is one of the DLL files loaded by the Microsoft Exchange System Attendant service during startup, is either corrupt or not present.

  • Event 9002 indicates that the internal Recipient Update Service in the Microsoft Exchange System Attendant service failed to start. The Recipient Update Service is a component of the Microsoft Exchange System Attendant, and the code for the Recipient Update Service is in the ABV_DG.DLL file. When the Microsoft Exchange System Attendant starts, it loads several DLL files, and one of them is the ABV_DG.DLL file. A failure to load the file and initiate the Recipient Update Service can result in this event.

  • Event 9005 indicates that the OABGEN.DLL file, which is one of the DLL files loaded by the Microsoft Exchange System Attendant service during startup, is either corrupt or not present. The error code is usually C007007E, which maps to ERROR_MOD_NOT_FOUND.

User Action

To resolve this alert, do one of the following:

  • To resolve event 9002:

    • Make sure that the ABV_DG.DLL file is present in the location where the Exchange server is installed. This is typically the <Install Drive>:\Program Files\Microsoft\Exchange Server\Bin folder.

    • If the file is present, ensure that the file is of the correct version for the Exchange Server version installed.

    • If you are having difficulty resolving the issue, contact Microsoft Product Support. For information about contacting support, visit the Contact Us page of the Microsoft Help and Support Web site.

      Note   The Recipient Update Service is only required in environments that have a mixture of servers running Microsoft Exchange Server 2007 and Exchange Server 2003 or Exchange 2000 Server. To learn more about running Exchange 2007 in a mixed environment, see Coexisting with Exchange Server 2003 and Exchange 2000 Server.

  • To resolve event 9005, check to ensure that OABGEN.DLL is present in the expected location. By default, this file must be present in the <Install Drive>\Program Files\Microsoft\Exchange Server\Bin folder.

For More Information

To search the Microsoft Knowledge Base articles based on criteria that generated this alert, visit the Search the Support Knowledge Base (KB) Web site.

To review Exchange 2007 event message articles that may not be represented by Exchange 2007 alerts, see the Events and Errors Message Center.

If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.