MSN Messenger
2000-2005
2002-2005
Windows Live Messenger
2005-2009
2009-2013; 2009-present (Mainland China)
Windows Live Messenger was discontinued in favor of Skype on April 8, 2013. Mainland China has not discounted the app.
Windows Live Messenger was discontinued in favor of Skype on April 8, 2013. Mainland China has not discounted the app.