SBS2003 licenses are kept in the licstr.cpa file in the WINDOWS\system32 folder.There is anautomatic backup of this in autolicstr.cpa. The simple process was to stop the License Logging Service, rename licstr.cpa to licstr.cpa.old, then rename autolicstr.cpa to licstr.cpa. After this start License Logging Service and check License Management Tool to confirm that the licenses had been restored.