You can connect to and manage any chat server you have Windows NT administrator or chat sysop manager permissions on. You can allow, prohibit, and impose restrictions on dynamic channels, set up authentication for chat users, add or remove server extensions, or modify the order in which Chat Service applies these extensions.
When you first set up Chat Service, there is no method for authenticating users. Without authentication, chat users essentially register with the service anonymously. The only information revealed to the service is the user's nickname, real name, and IP address, all of which can be forged. Chat Service can authenticate users with a clear-text password, NTLM, or any authentication package that conforms to SSPI.
This section describes: