As far as I can tell none exist. For SciTE there is an API file that contains a few properties for Response, Request, Application, Server, Session and a few shortcuts — from this file we could build an ASP API for PN.
But as far as I can tell there is no easy way to the scheme. You would have to make one yourself. I think you would want to start from the PHP one and rework it for ASP – although since ASP(.Net) is so hybrid and supports different languages it might not be what you are looking for.