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SAR The SAR application archive (e.g., myservice.sar) packages a JBoss service in a JAR file. It is mostly used by JBoss Enterprise Application Platform internal services that have not been updated to support MC beans style deployments. You can deploy *-service.xml files with MBean service definitions. If you have the appropriate JAR files available in the deploy or lib directories, the MBeans specified in the XML files will be started. This is the way you deploy many JBoss Enterprise Application Platform internal services that have not been updated to support POJO style deployment, such as the JMS queues. You can also deploy JAR files containing EJBs or other service objects directly in JBoss Enterprise Application Platform. The list of suffixes that are recognized as JAR files is specified in the conf/bootstrap/deployers.xml JARStructure bean constructor set.