# Introduction
Welcome to yellows' MSNP wiki - "we actually have documentation"

Why not visit the [Command Table](command-table.md)?

# Protocol Versions

* [CVR0](versions/cvr0.md)
* [MSNP2](versions/msnp2.md)
* [MSNP3](versions/msnp3.md)
* [MSNP4](versions/msnp4.md)
* [MSNP5](versions/msnp5.md)
* [MSNP6](versions/msnp6.md)
* [MSNP7](versions/msnp7.md)
* [MSNP8](versions/msnp8.md)
* [MSNP9](versions/msnp9.md)
* [MSNP10](versions/msnp10.md)
* [MSNP11](versions/msnp11.md)
* [MSNP12](versions/msnp12.md)

More is to come soon! Hopefully!

# Wanted Information
* [MSNP2](versions/msnp2.md): What is the format of the initial `text/x-msmsgsemailnotification`?
* [MSNP3](versions/msnp3.md): How is `creds` generated for URLs native to this version?
* [MSNP4](versions/msnp4.md): Anything for this one.
* [MSNP6](versions/msnp6.md): What makes the "Account must be verified before using the service" dialog show up?
* [MSNP6](versions/msnp6.md): Does it really acknoledge the account verified bit? I couldn't get the toast to show up in Client Version 3.6.003x.
* [MSNP8](versions/msnp8.md): Did FND exist? Rumors said it did shortly before it got killed in all protocols.
* [MSNP10](versions/msnp10.md): Asynchronous `BPR MFN`s from the server. Does it really?
* [MSNP11](versions/msnp11.md): How does `ABCHMigrated: 0` really work now? `OUT MIG` still exists.
* All Protocols: Any error code known to exist but is missing from the pages.

# Common (or not) Terms
* Official Client: MSN Messenger (Service) or Windows Live Messenger.
* Client Version: relevant Official Client version.
* MSNP: Mobile Status Notification Protocol, or whatever acronym you like. Runs over TCP via port 1863.
* ABCH: Address Book Clearing House
* Messenger Config: A file used by Client Version 6.0 and higher that specifies some data for the Official Client.
* `svcs.microsoft.com`: Usually a grab-bag of random XML files or services used for clients older than Client Version 6.0.
* Protocol Split: A MSNP version that usually defines a point of no return.
* PP14: Passport SSI Version 1.4.
* PP30: Passport over SOAP ala Client Version 7.5+.
* SOAP: Simple Object Access Protocol, A wrapper over XML. That's the kindest thing I can write about it.
* Passport: The Authentication Server and/or Protocol.
* Undefined Behavour: An intentional blank left in the documentation, basically as a "I am not responsible for what this does to your client or server" warning.
* Dispatch Server: A type of MSNP server that handles moving users to Notification Servers.
* Notification Server: The real meat of MSNP, handles authentication, user presence, notifications, creates Switchboard Server sessions and boasts the most commands.
* Switchboard Server: The messaging part of the protocol. Changed only twice until it was deprecated in [MSNP21](versions/msnp21.md).
* Command: A 3-letter case-sensitive command type, followed optionally by a transaction ID and the rest of the Command parameters, ending with a new-line.
* Payload Command: A special type of Command that has a integer length parameter as the final parameter before the deliminating new-line.
* New-line/Newline: A Carriage Return character followed by a Line Feed character. Seperates commands in the protocol.
* Carriage Return: To return the page-writing apparatus to the left of the page.
* Line Feed: To move the page-writing apparatus down a "line".
* TrID: Transaction ID. Links the server's response to the client's request.

# Where do I find or edit these page's source?
The git repo is avaliable at <https://git.kevinthe.horse/yellows111/msnp-wiki>.

You can submit changes to me via any avaliable contact method as a e-mail merge request, like those made with [`git format-patch`](https://git-scm.com/docs/git-format-patch).