Since March 10, 2003 - Version 2
hypothetic.org

MSN Messenger Protocol

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· FAQ
· Unofficial Protocol
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Research
· Research Practice
· MSNP8
· MSNP9
· MSNP10
· Client ID structure

Documentation
 General
· Overview
· Glossary
· Connections
· HTTP Connections
· Commands
· Payload Commands
· Names
· MD5
 Notification
· Authentication
· Statuses
· Pings / Challenges
· Contact Lists
· Users / Groups
· Messages
· Miscellaneous
· Example Session
 Switchboard
· Authentication
· Participants
· Messages
· Plaintext
· Invitations
· Example Session
 Protocols
· Invitations
· File Transfer
 Reference
· Original Draft
· Error List

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Introduction

Purpose

This website is intended to be an unofficial guide to the MSN Messenger protocol. It is written primarily for programmers that want to utilize the MSN Messenger protocol in software.

Authors

The website itself was written primarily by Mike Mintz. The content was originally written by Mike Mintz, but the current version of the website has also been greatly contributed to by Andrew Sayers.

More Information

For more information about this website (including contact information), please read the About page.

News

October 1, 2003

As you probably already know, versions 7 and below of the MSN Messenger protocol will be disabled as of October 15th. We expect that clients supporting version 8 and above will continue to function, and documentation about the changes in MSNP8 are available. We intend to integrate this information into the rest of the site eventually.

June 27, 2003

The new version of this website (you are currently looking at it) was officially published today. However, the old version is still kept online for nostalgic purposes.

Copyright ©2002-2003 to Mike Mintz.