This is a demonstration copy of the G++ environment. G++ is a complete environment, owned and copyrighted by SYCO, for Object Oriented analysis, design, prototyping and implementation of concurrent and distributed systems with C++ language. The present demonstration run on LINUX 1.2.1 with Motif 2.0 and contains the editors, the demos, the user and gui manuals, the online reference manual of the G++ class framework. To start the environment run demo. All editors are fully operative, up to the generation of the C++ code, with exclusion of the saving the editing session. With these editors a sampling of the G++ supported development process can be tested, the design of the demos can be browsed, and the run-time animation viewed. The environment is available on most of the unix and PC platforms. For information contact SYCO: Via Morghen, 4 - 10143 Torino, Italy Phone/Fax +39 11 748347. To Install: type 'tar zxfv gppdemo.tar.gz -C /usr/local/src'