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An access violation error may occur in the Apiem.dll file when you run Microsoft Office Communications Server 2007.
This issue may occur if a race condition occurs between the SQL handler and the message processing handler on an overloaded server that is running Office Communications Server 2007.
How to obtain the hotfix
This issue is fixed in the Communications Server 2007 Hotfix Package that was released on November 2, 2007. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
942872 Description of the Communications Server 2007 update package: November 2, 2007
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.