Windows Live Messenger - Wikipedia
https://en.wikipedia.org/wiki/Windows_Live_MessengerMSN Messenger (also known colloquially simply as "MSN" ), later rebranded as Windows Live Messenger, was a cross-platform instant-messaging client developed by Microsoft. It connected to the Microsoft Messenger service and, in later versions, was compatible with Yahoo! Messenger and Facebook Messenger. Versions were developed for Windows, Xbox 360, Mac OS X (later under the name Microsoft Messenger for Mac), BlackBerry OS, iOS, Java ME, S60 on Symbian OS 9.x, MSN TV, Zune …