The software should have a way to export the license using built-in menus. It's typically found in the Help section of the software. Check that to see if there is a way. Alternatively, look in the installation folder because developers usually place the license files in that directory and a simple copy-paste should do the job.
Also, get in touch with the developers of the application to ask them about this procedure as well: https://retrotec.com/contact-us