MSN Messenger is an instant messaging program that lets you send instant messages to your friends, and much more.
Chat online, in real time, with friends, family, and colleagues. It's faster than e-mail, more discreet than a phone call, and best of all - it's free! MSN Messenger is more than just text, it's a great way to collaborate with co-workers or touch base with family and friends. You can even send an instant message to a contact's mobile phone. Customization features help you personalize your chats and make your connections even more meaningful.