Basic Chat messenger

Hello Coders. I want a Chat messenger with Text, Voice and Video facilities. Please note that This messenger wont be P2P. There would be a central server that would transfer the packets from one user to another user. Please specify what languages you would use Server side. The coder would get further developement work on the same project. Resoanble prices only please. Raman ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Windows 9x and above.