For those of you who administrate an OCS or LCS environment, please read the following. It seems an issue has come up with a patch that came available during the last patch releases, regarding KB 974571. As described by Doug Deitterick’s blog, it’s recommended to NOT apply this patch. If you install the patch it’s possible your OCS / LCS servers believe they are in an evaluation mode.
You’ll see events like this one :
Event Type: Error
Event Source: Live Communications Server
Event Category: (1000)
Event ID: 12290
Date: 10/13/2009
Time: 8:28:57 PM
User: N/A
Computer: �
Description:
The evaluation period for Microsoft Office Live Communication Server 2005 has expired. Obtain the released version of this product and upgrade to the non-evaluation version by running setup.exe
A solution now is to uninstall the patch.
For more information, I refer to this link.