Michel: We are doing something similar for one of our projects, but with a twist. Instead of building a plug-in, we are running a Java personal database server. Essentially, when the user is online, it compares what is in the central database to what is in the personal database, and, based on timestamps, only sends the delta and the messaging. PROBLEMS: There really is not printing (yet) from Java, so we are serving up web pages to print. Not very pretty. The database engines are not everything to everyone, so this is a problem with browser compatibility. That's one you won't have to sweat. Other than that, good luck. It's a formidable challenge. Adolph Santorine adolph@schedulestar.com http://www.schedulestar.com