MOVE ALONG NOTHING TO SEE HERE

All new docs are being written in the github msndevs wiki

The old contents are left here for historical reference

old contents

Placeholder page for docs about MSNP21, the protocol version introduced with WLM 2011.

Actual docs here

X-MSN-GWCapabilities

In http gateway connections, when the client sends the header:

X-MSN-GWCapabilities: *

The server adds this header to the reply:

X-MSN-GWCapabilities: LP

I assume this means long-polling.

FSL

Seen in MSNP22 but it's implemented as a no-op placeholder in msnp-sharp (msnp21).

>>> FSL 5 1025 3
<<< FSL 5

Purpose unknown.