as for this–>We’re interested in working on bringing back MSN Messenger, too. We have a custom server and a Microsoft Server. Not sure we’ll go down this road though.
check my post here → https://wink.messengergeek.com/t/im-on-the-only-human-in-the-world-with-a-original-wlm-2012-back-from-the-day-i-think/20764
i can drop an idea if you gonna be occupied with the project 
:
''connect"" WLM2012 (msnp21) with the Skype (if msnp24 still exists https://en.wikipedia.org/wiki/Microsoft_Notification_Protocol) in order to use the official ms server again–even the basic use like chatting.