The scan engines do not update in Forefront Security for Exchange Server and an error is logged in the ProgramLog.txt file

In Microsoft Forefront Security for Exchange Server, the scan engines do not update, and the following error is logged in the ProgramLog.txt file:

To resolve this problem, install Forefront Security for Exchange Server Service Pack 2 (SP2).

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.