Download Omega Messenger
Omega Messenger is one of the coolest applications in the market to chat with all your friends together that you have added in your MSN instant messenger and Yahoo messenger. This tool enables you to add all your contacts in one single window, making it easier for you to organize them and have them at hand for whenever you need to talk with them.
It has a very simple but really functional and accessible interface. You won't have any problem using this program, because its menus and settings are easy to figure out.
Compatible with every Windows operating system in the market.