Abstract: A system and method for point-to-point data streaming over a TCP/IP network. A Sender node serves data to the network, with one or more Viewer nodes receiving the data. A Mediator node provides administration and security and a static Internet location for accessing the system. As a result of the administration and security provided by the Mediator node, the data are communicated directly between the Sender and Viewer thereby minimizing resources and costs required for the Mediator. The Mediator node comprises a web server, an administrator and a database. An optional fourth MediaRelay node is provided to which the data are sent by the Sender and from which the data are received by multiple Viewers. The MediaRelay node permits a Sender having low bandwidth to service multiple Viewers. The Mediator uses versioning control to upgrade MediaSender software at the Sender node, and stores in a database information provided by a Sender during a registration procedure.