A modified form of the UDP multicast protocol is disclosed to implement a one-way download progress notification system between a server and one or more clients. The UDP multicast download progress notification system enables UDP messages to be sent only to registered clients, not broadcasted to all...http://www.google.co.uk/patents/US20080287197?utm_source=gb-gplus-sharePatent US20080287197 - UDP BRODCAST FOR USER INTERFACE IN A DOWNLOAD AND CONFIGURATION GAMING SYSTEM
