Commandline Arguments
JavaRa 2.0 introduced several new commandline arguments, which allow its functions to be operated with a script or across a network. This functionality is still new and requires further development to ensure compatibility across a range of different platforms and environments.
The supported commandline arguments are:
/SILENT – Hides the graphical user interface and suppresses all dialog messages and error reports.
/PURGE – Removes all JRE related registry keys, files and directories.
/CLEAN – Removes only JRE registry keys from previous version.
/UNINSTALLALL – Run the built-in uninstaller for all versions of JRE detected. Does not support the /SILENT argument at this time.
/UPDATEDEFS – Downloads a new copy of the JavaRa definitions, without a version comparison.
http://singularlabs.com/software/javara/javara-2-0-documentation/