This talk will be a very quick walk through creating a headless hello world application with commentary along the way about why this is might be desirable, the synergy with Ant tasks, and the very minimum you need to know about the RCP to follow what is going on. Despite all the wizzy GUIs in the world the need to do things at the command-line has not gone away. For scripting and batch mode processing it is very often convienent to have a "headless" or command-line interface that does a particular task that is already possible in the user interface of your plug-in. One option would be to provide a common library used by both your plug-in and a command-line utility, but then how do you keep the two in sync? The option I'll demonstrate is to use the Rich Client Platform (RCP) to write a plug-in that is not at all rich -- a command-line application that uses all of the plug-in goodness available on the Eclipse platform so that your GUI and command-line are never out of sync.