About the JNLP file

Java Web Start applications are launched using the Java Network Launch Protocol (JNLP). The JNLP file is required in order to deploy an application. A web browser is needed only to download a JNLP file that is used to launch the application. On subsequent occasions, you can double-click the JNLP file to relaunch the application. The web browser is not needed. The JNLP file, which is generated by the web server, is an XML text file that describes how the application should be launched. It contains the basic information on the application and host, such as the URL of the hosting station. The file does not contain any user- or session-specific information.

NOTE: Once a JNLP file is obtained, the application then checks that a Java 8 JRE (at a minimum) is installed. However, it does not check the update release version of the installed JRE.

Figure 2. The JNLP file downloads and launches the application

NOTE: If using the Chrome web browser, Chrome is not able to automatically open a JNLP file. The file must first be downloaded and then opened manually.

You may see the following notification that the required JRE unlimited strength policy files must be installed. After the files are installed you must close the application and restart it.

About the JNLP file

Figure 2. The JNLP file downloads and launches the application

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