Complex sentence: The DCE interprocess communications protocol also allows a single user interface (UI) program, the Orbiter UI, to present a standardized user interface to the disparate applications used by the LinuxMCE distribution.
Split into simpler sentences: The DCE interprocess communications protocol also allows a single user interface program, the Orbiter UI. This presents a standardized user interface to the disparate applications used by the LinuxMCE distribution.