Prior to installation ensure that your Operating System environment complies with the following:
<oXygen/> XML Diff supports only official and stable Java virtual machine versions 1.5.0 and later from Sun Microsystems (available at http://java.sun.com) and from Apple Computer (pre-installed on Mac OS X). For Mac OS X, Java VM updates are available at http://www.apple.com/macosx/features/java/. <oXygen/> XML Diff may work very well with JVM implementations from other vendors but the eventual incompatibilities will not be solved in further <oXygen/> XML Diff releases. <oXygen/> XML Diff does not work with the GNU libgcj Java virtual machine.
The PATH environment variable is set to the most current Java VM installation.
References to older Java VM installations are removed from the PATH.