We have 3 seats of SolidWorks, two seats were installed and the 3rd seat was still at SW 2006 running on W2K. While I was at Solidworks World last week out IT guy decided to do the upgrade of the operating system and SolidWorks. He had lost the paper I have him with the serial numbers for each seat so he just used the one that I had written in the DVD case which was the same one I used on my machine. He did not activate the license yet. What is the method of changing the serial number of this seat to the correct one?