As we reported before, Service Pack 2 of Microsoft Office SharePoint Server 2007 converts the license to a 180-day trial installation.
Microsoft has just released a fix for this problem; the fix resolves the problem that causes Office Server products to expire 180 days after Service Pack 2 is installed.
Update for 2007 Microsoft Office Servers (KB971620), 32-Bit Edition
Update for 2007 Microsoft Office Servers (KB971620), 64-Bit Edition
For information about how to deploy this update, please see the Microsoft TechNet article on deploying server updates: http://technet.microsoft.com/en-us/library/cc263467.aspx.
This update applies to the following products:
- Microsoft Office SharePoint Server 2007
- Microsoft Office Project Server 2007
- Microsoft Search Server 2008
- Microsoft Search Server 2008 Express
- Microsoft Office Forms Server 2007
Source: Microsoft Download Center