Channel developers must use the Castanet Publisher to copy a channel's files to a Castanet Transmitter. Anyone can use a free Castanet Tuner to subscribe to a published channel. Subscribing downloads and installs a channel, which can then be run or displayed from the user's disk. Each channel includes a developer-provided schedule which the Tuner uses to automatically keep the channel current, downloading new and modified files as they are republished to the channel's Transmitter. EntryPoint EntryPoint is an Internet news network that can be displayed as part of a computer desktop.
Headlines move dynamically across the screen.
Advertiser supported, the EntryPoint Network is free to both users and publishers. It supports data delivery over a wide variety of networks and protocols. Each ASF file is composed of one or more media streams. The file header specifies the properties of the entire file, along with stream-specific properties. Multimedia data, stored after the file header, references a particular media stream number to indicate its type and purpose.