ServiceData

MSNP21 introduced the concept of two-letter "services". Each of these provide a subset of properties associated with the user account, or with the particular client they are running, in the case of endpoint data.

These two-letter services are used in the n="..." attribute of the PUT MSGR\CONTACTS (MSNP24) / ADL (MSNP21) payload

<c n="username" t="8"><s l="3" n="PE"/><s l="3" n="IM"/><s l="3" n="SKP"/><s l="3" n="PUB"/></c>

And in the payloads of NFY PUT /user:

<user>
<s n="IM"><Status>NLN</Status><CurrentMedia></CurrentMedia></s>
...
<sep n="IM" epid="{9b7af5f5-8e29-c58e-42b4-a64d07ac70e7}"><Capabilities>0:4194560</Capabilities></sep>
...
</user>

Where <s> tags include service data values and <sep> include endpoint data values, and there's one <sep> for each connected client.

See Subscriptions for more details.

IM

Service data

• IsOnline
• IsOnlineViaMobileDevice
• IsOnlineViaWeb
• Status
• SupportsMultipartyConversations
• Version
• VideoCallSupports16By9AspectRatio

Service data probably unused by newer clients:

• CanSupportVideoCalls
• CurrentMedia
• SupportsApplicationMessages
• SupportsNudges
• WebCamDetected

Endpoint data

• Capabilities
• DMN (domain)
• IsOnlineViaMobileDevice
• IsOnlineViaWeb
• MessageExtensions
• PresenceExtensions
• SupportsMultipartyConversations
• Version
• VideoCallSupports16By9AspectRatio

Service data probably unused by newer clients:

• CanSupportVideoCalls
• SupportsApplicationMessages
• SupportsNudges
• WebCamDetected

PE

Service data

• ColorScheme
• DisplayPictureUrl
• FriendlyName (display name)
• IsIdentityVerified
• MachineGuid (TODO: check which official client sends this)
• PSM (personal status message)
• Scene
• UserTileLocation
• ASN
• DDP
• RID
• RLT (rich link type)
• RUL (rich url)
• RUM (rich user message)
• SUL (safe url)

Endpoint data

• Capabilities
• ClientName
• ClientVersion
• TYP (client type)
• VER

PD

No Service data

Endpoint data

• ClientType
• EpName
• Idle (TODO: check which official client sends this)
• State (ditto)

CM

Probably unused in newer clients.

Service data

• comments

Endpoint data

• events

SKP

MSNP24+ only

Service data

• Mood
• Skypename

Endpoint data

• NodeInfo
• Seamless
• Version

PUB

Service data

• Seamless

Endpoint data

• Capabilities