LAN messenger for Windows with features like Google Talk [closed]

Currently we are using Google Talk as messenger at our work place. Now we are supposed to replace it with some LAN based messenger. It should have at least following features chatting ( if logs are stored some where than it is good ), File sharing. Thanks.

Solution 1:

you could run openfire

• it uses jabber (the same protocol as gtalk) so your learning curve is minimal - its free, with the option of support (with some paid plugins) and fairly simple to set up and run. management is through a web interface. Its free and open source as well, and runs on windows or linux

Solution 2:

Pidgen ZeroConf using the Bonjour protocol no server to setup, the users can see each other as they come online via brodcast Link explain installation on Windows/Linux/Mac

Using it for the better half of the year, works_as_expected = true;

Update: you don't have to : "Use the SAME 'Hostname' for ALL clients" as the guid explains