ocs2007r2On october 15th Microsoft released a security update KB974571 ((MS09-056). After applying this update it will cause the LCS or OCS servers to show running with the evaluation version and then noting it as expired. Microsoft is investigating the cause of the problem. The MS09-56: Vulnerabilities in CryptoAPI could allow spoofing article has been updated with a Known Issues section for the LCS and OCS product.

Event Type: Error
Event Source: OCS Server
Event Category: (1000)
Event ID: 12290
Date: 10/15/2009
Time: 3:52:31 PM
User: N/A
Computer: SRV-OCS01
Description:
The evaluation period for Microsoft Office Communications Server 2007 R2 has expired. Please upgrade from the evaluation version to the full released version of the product.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

If you allready applied the update you can fix the problem by simply uninstall the KB974571 update on your LCS / OCS servers.

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