Windows Live Messenger Add-In API
The Messenger Add-In API Beta is no longer supported. Please see dev.live.com for announcements and information on additional Messenger APIs.
This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
The Messenger Add-In API Beta is no longer supported. Please see dev.live.com for announcements and information on additional Messenger APIs.