Keep a copy on an external backup thumb drive alongside your emulation roms.

If you have placed your file in the directory but LaunchBox is still showing the Free version, walk through these troubleshooting steps to resolve the issue. 1. File Extension Duplication (license.xml.txt)

: If LaunchBox is open, close it completely and relaunch it.

If you placed the file in the folder but the software remains free, check the following: