Java Web Start (JavaWS) technology is a framework which is used to allow the user to run java platform specific application software directly from the internet. The Java Web Start applications do not run in a browser. Web start application provides a series of classes which provides various services to the applications. These classes are available in the package called javax.jnlp

Web start comes as a part of Java Runtime Environment without having separately installed. It comprises the portability of applets and maintainability of servlets and JSP technologies. Java Web Start allows the java client applications to be launched, updated, and deployed from a standard web server.

The Java Application Manager feature allows the end-users to organize the java applications and also provides different options such as specifying the use of multiple Java Runtime Environments, setting proxy servers for HTTP.