# 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`](commands/ver.md) | N | Y | N | [MSNP2](versions/msnp2.md)  | every MSNP version, but retaining base syntax, removed in MSNP24 |
| [`INF`](commands/inf.md) | N | Y | N | [MSNP2](versions/msnp2.md)  | [MSNP3](versions/msnp3.md) (removed CTP), [MSNP8](versions/msnp8.md) (removed; automatic disconnect) |
| [`CVR`](commands/cvr.md) | N | Y | N | [MSNP2](versions/msnp2.md)  | [MSNP8](versions/msnp8.md) (parameter 8) |
| [`CVQ`](commands/cvq.md) | N | Y | N | [CVR0](versions/cvr0.md)   | [MSNP8](versions/msnp8.md) (parameter 8) |
| `USR` | N | Y | N | [MSNP2](versions/msnp2.md)  | [MSNP3](versions/msnp3.md) (removed CTP), [MSNP6](versions/msnp7.md) (added verified bit to OK), [MSNP8](versions/msnp8.md) (TWN auth, removed MD5 auth, added unknown bit to OK), [MSNP10](versions/msnp10.md) (removed current display name in favor of PRP MFN), [MSNP15](versions/msnp15.md) (SSO auth) |
| [`XFR`](commands/xfr.md) | N | Y | Y?| [MSNP2](versions/msnp2.md)  | [MSNP3](versions/msnp3.md) (parameter 3), [MSNP7](versions/msnp7.md) (parameter 4) |
| [`OUT`](commands/out.md) | N | Y | Y | [MSNP2](versions/msnp2.md) | [MSNP10](versions/msnp10.md) (MIG and TOU disconnect reasons added), [MSNP11](versions/msnp11.md) (RCT reason added with parameter for amount of minutes until attempted reconnect.) |
| [`FND`](commands/fnd.md) | N | Y | N | [MSNP2](versions/msnp2.md) | [MSNP5](versions/msnp5.md) (uses SDC instead of SND), July 2003 (not really any specific MSNP update, just soft-removed with a 502.) |
| [`BLP`](commands/blp.md) | N | Y | Y\*| [MSNP2](versions/msnp2.md) | [MSNP10](versions/msnp10.md) (Removed List Version if `ABCHMigrated: 1`), [MSNP13](versions/msnp13.md) (removed: automatic disconnect) |
| [`GTC`](commands/gtc.md) | N | Y | Y\*| [MSNP2](versions/msnp2.md) | [MSNP10](versions/msnp10.md) (Removed List Version if `ABCHMigrated: 1`), [MSNP13](versions/msnp13.md) (removed: automatic disconnect) |
| [`CHG`](commands/chg.md) | N | Y | Y | [MSNP2](versions/msnp2.md) | [MSNP8](versions/msnp8.md) (Added Client Capability flags support as parameter 2), [MSNP9](versions/msnp9.md) (MSNObject support as parameter 3) |
| [`IMS`](commands/ims.md) | N | Y | N | [MSNP3](versions/msnp3.md) | |
| [`ACK`](commands/ack.md) | N | N | Y | [MSNP2](versions/msnp2.md) | [MSNP9](versions/msnp9.md) (Now can happen as a response to [MSG](commands/msg.md) D.) |
| [`NAK`](commands/nak.md) | N | N | Y | [MSNP2](versions/msnp2.md) | |
| [`BYE`](commands/bye.md) | N | N | Y | [MSNP2](versions/msnp2.md) | |
| [`ANS`](commands/ans.md) | N | Y | Y | [MSNP2](versions/msnp2.md) | [MSNP16](versions/msnp16.md) (Added MPOP Machine ID appended to the local user's handle parameter, delimited by a semi-colon) |
| [`MSG`](commands/msg.md) | Y | Y | Y | [MSNP2](versions/msnp2.md) | [MSNP9](versions/msnp9.md) (Added Acknoledgement Type D) |
| [`IRO`](commands/iro.md) | N | N | Y | [MSNP2](versions/msnp2.md) | [MSNP12](versions/msnp12.md) (Added Client Capability flags support as parameter 5) |
| [`JOI`](commands/joi.md) | N | N | Y | [MSNP2](versions/msnp2.md) | [MSNP12](versions/msnp12.md) (Added Client Capability flags support as parameter 3) |
| [`CAL`](commands/cal.md) | N | Y | N | [MSNP2](versions/msnp2.md) | |
| [`PRP`](commands/prp.md) | N | Y | N | [MSNP5](versions/msnp5.md) | [MSNP8](versions/msnp8.md) (Removed List Version in SYN), [MSNP10](versions/msnp10.md) (Removed List Version outside of SYN if `ABCHMigrated: 1`) |
| [`BPR`](commands/bpr.md) | N | N | Y | [MSNP5](versions/msnp5.md) | [MSNP8](versions/msnp8.md) (Removed List Version and user handle in SYN), [MSNP10](versions/msnp10.md) (Removed List Version outside of SYN if `ABCHMigrated: 1`) |
| [`RNG`](commands/rng.md) | N | N | Y | [MSNP2](versions/msnp2.md) | |
| [`LST`](commands/lst.md) | N | Y | Y\*| [MSNP2](versions/msnp2.md) | [MSNP7](versions/msnp7.md) (Added groups support), [MSNP8](versions/msnp8.md) (SYN: removed iterator parameters, condensed all lists into a single parameter, removed List Version), [MSNP10](versions/msnp10.md) (Added prefixes to contact's handle and friendly name, and added a GUID parameter if `ABCHMigrated: 1`. Also changed group IDs to GUIDs.), [MSNP12](versions/msnp12.md) (Added network IDs), [MSNP13](versions/msnp13.md) (Likely removed) |

# Modifiers
* `*`: Only in `SYN`.
* `?`: Unconfirmed, but not impossible, or needs verification.