Microsoft added XMPP support to MSN (Windows Live Messenger)

Great news! Microsoft opened Live Messenger to XMPP standard!
Some XMPP code examples from Microsoft demostrate how to Windows Live Messenger work with the Extensible Messaging and Presence Protocol (XMPP).
Stay tuned for future cudumar-xmpp updates ;-)

The Windows Live Messenger Extensible Messaging and Presence Protocol (XMPP) service supports only the following extensions, as defined by the XMPP Standards Foundation. Partial support for some extensions is noted:

• RFC6120: XMPP: Core
• RFC6121: XMPP: Instant Messaging and Presence. Roster management is not supported.
• XEP-0054: vcard-temp. The Messenger XMPP service supports fetching vCards, but doesn't support updating vCards.
• XEP-0085: Chat State Notifications
• XEP-0203: Delayed Delivery