WRlfTool is a Windows-interface program that allows you to create and maintain a redundant license file.
Using Windows Explorer, navigate to the location of the wrlftool.exe file, and double-click the file to start the program. (The exact location of this file depends on your application vendor.)
The changes you make to the redundant license file will not take effect until you copy the changed file to a redundant License Manager in the pool (or edit it directly on the License Manager) and then restart that License Manager.