Sun Microsystems has developed a framework named Java Web Start. This framework allows us to directly start application software for the Java Platform from the Internet using a web browser. Unlike applets, Web Start applications can not be run inside the browser and the sandbox that is used to run the web start do not need to restrict while they can be configured. One of the leading advantage of Web Start over applets is that they overcome many problems regarding compatibility with browsers' Java plugins and different JVM versions, but one of the major drawback with the Web Start programs is that they cannot communicate with the browser as easily as applets. In order to assist migration, a Java Applet is generally used as a Java Web Start application.
  
Web Start also supports a series of classes in the javax.jnlp package in order to support various services to the application. Most of these services that the Web start provides mainly focuses on access control to resources (such as files and the system clipboard) while restricting the application to authorized operations.