Hi All, I'm developing an application, in which user can schedule number of task, tasks can be scheduled on the bases of time or day or both. For example, User can configure a task that should run on every 4th hour on Friday of every week. For that I want to use Quartz, as I know it is provided with JBoss 5.0.0. But the problem is this I dont know how to use it, also I want to know that can we JNDI lookup the Quarts Scheduler service, like wise we have JNDI lookup for TimerService. Can anybody help me??