Jacek Sieka:
You're missing the point. With this scheme, a client can create a new
command and have it sent to other clients correctly without any updates to
the hub software at all (if nmdch supported this, we wouldn't need a new
protocol at all, because creating a new search or myinfo command would have
been doable without having to update and rewrite all the hubs out
there...)...

This mean hub must trust all client's commands, and just forward to
client(s) depending to the first char?

/Fabrice