The communication of information is a crucial point in the development of our future way of life. We are living more and more in an information society. Perhaps the more obvious applications are those devoted to distributed cooperative multimedia systems. In both industry and academia, people are involved in such projects. HPN'95 is an international forum where both communities can find a place for dialogues and interchanges. The conference is targeted to the new mechanisms, protocols, services, and architectures derived from the need of emerging applications, as well as from the requirements of new communication environments. This workshop belongs to the series started in 1987 in Aachen, followed by Liege in 1988, Berlin in 1991, Liege again in 1992, and Grenoble in 1994. HPN'95 is the sixth event of the series sponsored by IFIP WG 6.4.