Some xml elements in Element.xml file in WSS 3.0: 1. Root element: Elements. It contains a Id attribute, which is a guid to uniquely identify this element. 2. Receivers element: This element is inside Elements. It contains ListTemplateId attribute which specifies what type of list will be attached to list item event handler. For example, a value of 101 means that the event handler will be attached to all document libraries. 3. Receiver element: This element is inside Receivers element. It contains several sub elements in it to define the class to receive list item event. A sample configure is like this: <receiver> <name>DigiDoc signature check event <type>ItemUpdated <sequencenumber>5000 <assembly>wssDigiDoc, Version=1.0.0.0, Culture=neutral, PublicKeyToken=44b3223b8da05605 <class>wssDigiDoc.ddocEventHandler </> Name: A descriptive name Type: The event type that this receiver class will handle. The possible values are: ItemAdd, ItemUpdate, It