# Table of contents:

Introduction
Command information
Known changes
Client-server communication example

# Introduction

MSNP12 is the eleventh released version of the Mobile Status Notification Protocol. It was introduced officially in Client Version 7.5.0299.

# Command information

It introduces the notification service commands:

No switchboard or dispatch service commands were known to be introduced in this version

No error codes were known to be introduced in this version

No commands were known to be removed in this version

# Known changes

(from MSNP11):

Network IDs are introduced, each bit represents a contact's service, with bit 0/decimal 1 being MSNP.
Switchboard commands JOI and IRO have a new parameter for the Client Capabilities of the relevant user.
LST has the Network ID after the list bits (on any list), but before the Group ID (if on Forward List (FL)).
Official Client: Uses Passport 3.0 (via the Microsoft Identity Common Runtime Library).
Official Client: Dropped support for older operating systems, Now requires Windows XP or higher.
Official Client: Now supports Voice Clips, which can be disabled in the Messenger Config.

# Client-server communication example

NOTE: This has been line-breaked. Lines beginning with .. followed by a space are continuations of the previous line.

C: VER 1 MSNP12 MSNP11 MSNP10 CVR0
S: VER 1 MSNP12
C: CVR 2 0x0409 winnt 5.1 i386 MSNMSGR 6.0.0602 MSMSGS example@hotmail.com
S: CVR 2 6.1.0211 6.1.0211 6.1.0155
.. http://download.microsoft.com/download/8/3/C/83C4B2DB-AC1C-4B56-8144-4472C0982F21/SetupDl.exe
.. http://messenger.msn.com
C: USR 3 TWN I example@hotmail.com
S: XFR 3 NS 10.0.0.5:1863 0 10.0.0.1:1863

Client disconnects from server

Client opens a connection to 10.0.0.5:1863 (from stored server)

C: VER 4 MSNP12 MSNP11 MSNP10 CVR0
S: VER 4 MSNP12
C: CVR 5 0x0409 winnt 5.1 i386 MSNMSGR 6.0.0602 MSMSGS example@hotmail.com
S: CVR 5 6.1.0211 6.1.0211 6.1.0155
.. http://download.microsoft.com/download/8/3/C/83C4B2DB-AC1C-4B56-8144-4472C0982F21/SetupDl.exe
.. http://messenger.msn.com
C: USR 6 TWN I example@hotmail.com
S: USR 6 TWN S passport=parameters,neat=huh,lc=1033,id=507
C: USR 7 TWN S $(pp14response.headers.authenticationInfo["from-PP"])
S: USR 7 OK example@hotmail.com 1 0
S: SBS 0 null
S: MSG Hotmail Hotmail 465
MIME-Version: 1.0
Content-Type: text/x-msmsgsprofile; charset=UTF-8
LoginTime: 1726321960
EmailEnabled: 1
MemberIdHigh: 1
MemberIdLow: 2
lang_preference: 1033
PreferredEmail: example@hotmail.com
country: US
PostalCode: 
Gender: 
Kid: 0
Age: 
BDayPre: 
Birthday: 
Wallet: 
Flags: 1027
sid: 507
kv: 11
MSPAuth: whatever+t+is+in+your+passport+login+ticket+that+you+sent+for+USR+TWN+S$
ClientIP: 192.168.1.111
ClientPort: 18183
ABCHMigrated: 1

C: SYN 8 2024-09-28T17:18:18.6400000-07:00 2024-09-28T17:18:18.6400000-07:00
S: SYN 8 2024-09-29T11:27:30.2300000-07:00 2024-09-28T17:18:18.6400000-07:00
S: GTC A
S: BLP AL
S: PRP MFN example%20user
S: PRP PHH 123%20(4567)
S: LSG Other%20Contacts d6deeacd-7849-4de4-93c5-d130915d0042
S: LST N=anotheruser@hotmail.com F=another%20user C=c1f9a363-4ee9-4a33-a434-b056a4c55b98 11 1 d6deeacd-7849-4de4-93c5-d130915d0042
S: BPR PHH 1%20(222)%20333%204444
C: GCF 9 Shields.xml
S: GCF 9 Shields.xml 145
<?xml version= "1.0" encoding="utf-8" ?><config><shield><cli maj="7" min="0" minbld="0" maxbld="9999" deny="" /></shield><block></block></config>
C: CHG 10 NLN
S: CHG 10 NLN
C: UUX 11 40
<PSM></PSM><CurrentMedia></CurrentMedia>
S: UUX 11 0
C: OUT

Client disconnects from server

S: OUT

Server disconnects client