msnp-wiki/docs/command-table.md

Command Table

This is a list of all known MSNP commands and their originating version.

COMMAND	Payload (Y/N)	Client to Server (Y/N)	Server to Client (Y/N)	Originating Version	Changed? (version list)
VER	N	Y	N	MSNP2	every MSNP version, but retaining base syntax, removed in MSNP24
INF	N	Y	N	MSNP2	MSNP3 (removed CTP), MSNP8 (removed; automatic disconnect)
CVR	N	Y	N	MSNP2	MSNP8 (parameter 8)
CVQ	N	Y	N	CVR0	MSNP8 (parameter 8)
USR	N	Y	N	MSNP2	MSNP3 (removed CTP), MSNP6 (added verified bit to OK), MSNP8 (TWN auth, removed MD5 auth, added unknown bit to OK), MSNP10 (removed current display name in favor of PRP MFN), MSNP15 (SSO auth)
XFR	N	Y	Y?	MSNP2	MSNP3 (parameter 3), MSNP7 (parameter 4)
OUT	N	Y	Y	MSNP2	MSNP10 (MIG and TOU disconnect reasons added), MSNP11 (RCT reason added with parameter for amount of minutes until attempted reconnect.)
FND	N	Y	N	MSNP2	MSNP5 (uses SDC instead of SND), July 2003 (not really any specific MSNP update, just soft-removed with a 502.)
BLP	N	Y	Y*	MSNP2	MSNP10 (Removed List Version if ABCHMigrated: 1), MSNP13 (removed: automatic disconnect)
GTC	N	Y	Y*	MSNP2	MSNP10 (Removed List Version if ABCHMigrated: 1), MSNP13 (removed: automatic disconnect)
CHG	N	Y	Y	MSNP2	MSNP8 (Added Client Capability flags support as parameter 2), MSNP9 (MSNObject support as parameter 3)
IMS	N	Y	N	MSNP3
ACK	N	N	Y	MSNP2	MSNP9 (Now can happen as a response to MSG D.)
NAK	N	N	Y	MSNP2
BYE	N	N	Y	MSNP2
ANS	N	Y	Y	MSNP2	MSNP16 (Added MPOP Machine ID appended to the local user's handle parameter, delimited by a semi-colon)
MSG	Y	Y	Y	MSNP2	MSNP9 (Added Acknoledgement Type D)
IRO	N	N	Y	MSNP2	MSNP12 (Added Client Capability flags support as parameter 5)
JOI	N	N	Y	MSNP2	MSNP12 (Added Client Capability flags support as parameter 3)
CAL	N	Y	N	MSNP2

Modifiers:

• *: Only in SYN.
• ?: Unconfirmed, but not impossible, or needs verification.