MSN Chat - Wikipedia
https://en.wikipedia.org/wiki/MSN_ChatMessenger chat services remained open. MSN Chat became a subscription service for $20/year. On August 31, 2006 Microsoft announced that MSN Chat would no longer be provided. On October 16, 2006 MSN Chat shut down their servers at about 11:30 a.m. EST.
Windows Live Messenger - Wikipedia
https://en.wikipedia.org/wiki/Windows_Live_MessengerBefore the product was renamed Windows Live Messenger, it was named "MSN Messenger" from 1999 to 2006. During that time, Microsoft released seven major versions as follows. The first version of MSN Messenger Service, version 1.0 (1.0.0863), was released July 22, 1999. It included only basic features, such as plain text messaging and a simplistic contact list. When it was first release…