Scope
This document applies to the Windows version of Pathfinder only. It does not apply to the web-based Pathfinder Core PRO version. It covers how to attain the license for the software
License Recovery Website
Please visit the Pathfinder PC license recovery website to view all the liceneses registered to your name.
Server version V5.0+
Open Pathfinder Server application
Click on File
Click on License information

Server version V4.9 >
This is for versions before 5.0, because the licnese field doesn't show up on the GUI.
Run regedit
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Software Authority\PathfinderPCServerPro\Reg