Netchat allows you to chat with other users in the same subnet. The program creates a icon near the clock in your taskbar. With a left or right mouseclick you can chat, send your clipboard or transfer a file.
You can create a fixed user which can reside in another subnet. These users can be configured as gateways which will connect both NetChat subnets together.
Also a http server is included to share pictures and other files. For users which are currently offline, the message can be left on an ftp server.
Netchat is freeware. However, if you enjoy using Netchat and would like to help support its development, please consider making a donation.