1Both servers need to be accessible if possible.
2Starting with the outgoing server - you need to deactivate the current licence so that the licence can no longer be accessed on that server
3Get the user to log into the software from a client machine and on the licence status box (within the software under the Tools option) and click on Modify Licence or Renew or Upgrade Licence
4On Pivotal, go to the Licences area on the left hand side menu
5Select New NCL Generate Licence and enter the product.
6Select a date of one month prior to todays date and complete the rest of the licencing process using this tool
7"Unlock" the existing software thus rendering that licence immediately out of date and unusable and then move to the new server. 
8Check that the user has not copied across the licence files from the old server - if so delete these
9Check that there is a mapped drive to the new share exactly the same as the old server. (Users will need read/write/modify permission)
10Browse to C:\Program Files*\NBS\NBS Building\Licences and delete the licencesettings.config file (*Program Files(x86) if a 64 bit machine)
11Re-open the software and complete the licensing wizard as per the usual procedure choosing the new network share as the licence location