FreeCommander is a dual-panel file explorer and easy-to-use alternative to the standard windows file manager with many additional features.
It supports tabbed interface, built in FTP client, multi rename tool, calculation of folder size, folder comparison / synchronization, built in archive handling: ZIP (read, write), CAB (read, write), RAR (read) and much more.
To install automatically Free Commander 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.