This part of the Multimedia Viewer Developer's Guide describes additional features and techniques that you can use while authoring and building a Viewer title, including how to add nonscrolling regions to topics, create jumps to other books in multi-book titles, and display topics in secondary windows. You will also learn how to run Windows applications from Viewer, execute Viewer commands, add buttons and menus to Viewer, and advanced building options (including options that define root directories). @Z_TOC TITLE = Chapters