- AOL Instant Messenger (AIM) 1997
- Windows Live Messenger (WLM) 2006
- MSN Messenger (MSN) 1999
- Messenger Plus! (Addons)
- Yahoo! Messenger 1998
- ICQ 1996
- Skype 2003
- Butterfly Messenger
WLM released in 2006. It and MSN are the same thing
Also Messenger Plus! is an addon, not a separate program
Okay, thank you.
wtf is Butterfly Messenger
something that trekie made for windows xp when messenger reviver went wlm 2011/2012 only
Not just for XP. It’s main goal was trying to emulate as much of the WLM 2009 interface as possible while using MSNP21-compliant MSNPSharp.
You can find information about this program here