IP Messenger is a light weight, less resource utilizing, extremely simple to use LAN messenger which is available for various platforms. No server set up hassle, nothing of that sort will trouble you. Configure it once and you are all set to use it without any hiccups. There are options like lock which will let you know if the user you sent the message to has read your … [Read more...] about Best, Effective, Free, Light Weight, IP Messenger for LAN