> I now realise we need a bit more :-)
>
> So the issue is that we'd like to be able to specify a server by a
> single URL and be able to find everything else relative to that. Ideally
> we would do that by some discovery mechanism rather than hard coding
> relative URLs into the clients, but in the mean time...

>From what you've said my imagination makes me think of a page at
$URL/jumptable that gives a list of hard coded services and their
location on the server.  For example, $URL/jumptable might return: