Thanks for the replies. I don't know enough yet for any intelligent follow-up questions. I need to research this "built-in DCC client server model" you mentioned. Am I correct in assuming (I know, I know, never assume) that the mIRC software (using this built-in client server model) is capable of performing both client and server functionality as long as it stays on the local network and only uses mIRC clients?

Again, I am looking for a VERY simple chat solution for use in a single classroom... no campus, no multiple classrooms, nothing. Effectively, we are SIMULATING an Operations Center where chat communications are used, but for classroom purposes, all communications will be between an instructor and one student (possibly a few students).