MSN Messenger is an instant messaging program that lets you send instant messages with cool emoticons, send pictures and other files to your friends, call a phone anywhere in the world from your computer, see when someone is typing a message to you, page a contact's mobile phone, and much more. Click on Read More... for download links Download MSN Messenger 5.0.0544 for Windows XP Download MSN Messenger 5.0.0544 for Windows NT 4.0 and 2000 Download MSN Messenger 5.0.0544 for Windows 98 and Me