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block chat
iNetWatcherŽ block chat
Introduction and Overview
Chat programs are very popular, and many are designed to be 'easy to use'. In order to be easy to use, they are designed to work under a wide variety of connectivity conditions, and automatically configure themselves for connection by whatever means is available. This automatic configuration makes it both easy to use, and harder to block, because the programs themselves will go through a trial-and-error sequence of looking for open ports to connect through, and use proxies if possible. Often, proxy settings will be picked up from Internet Explorer, but the programs usually want to make a direct TCP connection to a central server to start.
The way these programs work is that a connection must be made to a central server, through which communications to other users are established. This is the key to blocking these programs - deny them access to the central servers, and they cannot work.
Related words:
block chat room
block msn messenger
block yahoo messenger
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