When creating an association on windows, the code uses Config.getJavawsCommand() to get the path to javaws to launch the associated file with. If Java is later updated, it will continue to use the older version, and if it is removed, the association will fail.
Shortcuts, however, use Config.getInstance().getSystemJavawsPath(), which will point them to the latest version, even if java is upgraded or uninstalled.
We should use getSystemJavawsPath() in associations as well.