Refbox 2007 is rewritten in Java.
So binary distribution and execution under several operation systems are possible.
The refbox 2007 requires at least Java 1.6 SE (Standard Edition).
A recent version of java is available on: http://www.java.com or http://java.sun.com
The protocol (character-based) of the MSL Refbox 2007 is 100% compatible with Refbox 2006.