How does Http.sys URL Prefix Registration translate into IIS bindings config?

Question

Windows HTTP Server API provides mechanisms for URL Registration and Reservation so that request queues can be setup by processes: http://msdn.microsoft.com/en-us/library/aa364483(v=VS.85).aspx.

And the URL matching is done by longest matching URL Prefix. With support for strong wild cards '+' and weak wild cards '*'.

I get that IIS does some mangling/translation of binding in web.config to HTTP Server API (http.sys) for URL registration. (URL Group and HTTP Request Queue).

Could someone throw some light here? Thanks!