I started to think about old messaging software and got nostalgic. I mainly used MSN Messenger that came bundled with Windows XP, and later updated to version 6.2 and so on. I also remember you had to the choice of installing MSN Messenger Plus, which added extra functionality and feature to the main program. It was fun to nudge people, causing their screen to shake, and to invite a bunch of people and to watch the chaos unfold xD
But I was sad when Microsoft killed of Windows Live Messenger, dark times indeed.... But they, we got discord and skype