WIRCSRV IRC Server version 4.14-beta for Windows 
Released: November 9, 1996

Wircsrv is a compact, efficient, irc server designed to run on windows3.1, and up. Installation is a snap, just start the program and you are ready to accept client connections, using the default configuration. With just a few simple menus and dialog screens you can set up server connections, authorize operators, etc. An extensive help file is included that explains the use of irc commands and menu options. 

So.... 

If you would like to have your very own IRC server. A server where YOU decide who should be in control of a channel, and YOU decide who stays and who goes. Well, this is it. With this program, and a few friends, you can have your own irc network and have people connect to you via programs like mIRC.
Now you can ban the people that annoy you while still being able to chat with your friends.
You would be the one everyone comes to because YOU have the server.

Where do you get it?

Click Here for version 4.14-beta! 

Requirements

Windows 3.1, or 3.1.1, or Windows95, or Windows/NT 
1 meg of free memory 
Winsock 1.1 or better 
True PPP internet connection 
Winzip, or PKUNZIP 
Your ISP (Internet Service Provider) running a DNS (Domain Name Server)