1. Set up host address

Select "Live Messenger" server name from context menu, or typing xmpp.messenger.live.com in the host name field.
2. Login with X-MESSENGER-OAUTH2 mechanism

Log on using the official microsoft login page: enter username and password.
3. Enable the application

Allow the cudumar-xmpp application to provide access to the Live Messenger network.
4. Wait few seconds, you are in!

That's all. Wait a few seconds to connect to the network :-)
Now, download latest cudumar-xmpp client!