Microsoft made the following updates available to fix the issue that triggers “during the installation of the 2007 Microsoft Office servers Service Pack 2, a product expiration date is activated incorrectly.” To resolve manually: Click Start, point to All Programs, point to Administrative Tools, and then click SharePoint 3.0 Central Administration; Click the Operations tab; Click Convert License Type; In the Enter the Product Key text box, type your product identification number, and then click OK; The License Synchronizer Job will run on all computers in the farm after a few moments. After all the computers have updated their license from the timer job, the Convert License Type page will reflect the correct license, KB971620.

Download:  2007 Microsoft Office Servers (KB971620) 32-Bit | 64-Bit