Hello, I'd like to know which JAR files are required for clients and servers. AFAIK the ant.jar and junit.jar are only required for testing and building Ozone. Regards Boris -- Dipl.-Inform. Boris Boehlen RWTH Aachen - Department of Computer Science III Ahornstrasse 55, 52074 Aachen, Germany email: boris@i3.informatik.rwth-aachen.de phone: +49 (2 41) 80 21 315 fax: +49 (2 41) 88 88 218