[DGD] Implementing MXP

[Lord Lerkista]

Hi

I'm implementing MXP in my Mud (a heavily modified 2.4.5 lib running in 
latest DGD 1.5), for now, i can turn it on and off by hand, but i want 
to be able to detect if the client support it, to enable it 
automatically and to don't let people without support enable it and see 
the tags

Anyone have an idea of how can i do this?? i can enable network 
extensions, but i don't have any idea what to do next

Thanks