If the Desktop App will not launch, or you are asked by your system how to open a “jnlp file” your java needs updating.

Visit the Java website to get the latest version of Java

Based on your operating system it will tell what to do (if Mac OSX it will tell you to do a software update, if PC it will provide the link right there).

You may also need to enable JNLP file (Java Web Launch) support.

Windows: Look for Java in the Control Panel. In later versions of Windows it will be under programs.

Mac OSX: Look in Applications…Utilities for Java Preferences.