Article ID: 968155 - View products that this article applies to.
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Microsoft Forefront Security for SharePoint may incorrectly detect clean Microsoft 2007 Office files. These files are then blocked and cannot be accessed. Additionally, "Engine Error" events are logged in the Forefront Security for SharePoint reports and log files.
This problem occurs because an engine error occurs during the scanning.
To resolve this problem, install Microsoft Forefront Security for SharePoint Service Pack 3 (SP3). After you install the service pack, you can choose to perform an action on these files when scan engine errors occur.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/967995/ )Description of Forefront Security for SharePoint with Service Pack 3
Article ID: 968155 - Last Review: January 15, 2015 - Revision: 2.0