Specifies a list of additional files required to support the HTML or HTML Help. These can be any files required that Author-it does not know about. For example, you may have a graphic specified in the Frameset template, or you may require a supporting Java applet. Author-it will copy all files specified to the publishing folder for this book when publishing any HTML based output.
The WebAdditionalFiles element corresponds to the "Specify any additional file required" field on the HTML tab of the Book object.