XAP (eXtensible AJAX Platform) allows the creation of AJAX applications using declarative syntax and provides a robust framework for event handling, messaging and extensibility. This presentation will provide an overall introduction to the XAP project and give attendees an understanding of the project's structure and capabilities. Highlights include step by step creation of a XAP application. Concepts to be covered will include: *Getting Started ? Overview of project structure and XAP bootstrapping process. *XML UI Structure ? Using XAP?s XML syntax for creating applications. *Event Handling ? Connecting widget events to business logic on either the client or server. *XAP eXtension ? Introduction on the XAP extension mechanism.