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In Microsoft Antigen 9.0 for Microsoft Exchange, the program log (ProgramLog.txt) indicates that a file is quarantined. However, the file does not exist in the quarantine. Therefore, the file is missing.
This issue may occur when the site distinguished name (DN) cannot be retrieved from the Active Directory directory service. In this situation, an unhandled exception causes the whole remote procedure call (RPC) request to be canceled. Because the quarantine operation occurs after the RPC request sends the notification, the file is not quarantined.
To resolve this issue, install Hotfix Rollup 3 for Antigen 9.0 for Exchange with Service Pack 1. For more information about how to obtain and install Hotfix Rollup 3 for Antigen 9.0 for Exchange Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:
950791 Description of Hotfix Rollup 3 for Antigen 9.0 for Exchange with Service Pack 1
Note Before you install Hotfix Rollup 3 for Antigen 9.0 for Exchange with Service Pack 1, you must have Antigen 9.0 Service Pack 1 installed.