Rapid Environment Editor (RapidEE) is an environment variables editor. It includes easy to use GUI and replaces small and inconvenient Windows edit box. It shows environment variables and values as an editable tree and provides a variable inspector, backup, multiuser support, error checking and much more.
To install automatically Rapid Environment Editor on your LiberKey, make sure you previously activated files associations from the "LiberKey Tools" menu.
You can then open the file directly to start the installation.