title: Upnp specifications
body: <p>Hi there i have written a media service that currently supports nfs and was now thinking about adding support for upnp but i don't know where to start is there any rfc or some thing i could read up on as the rfc for nfs where super helpful..
  and just to clarify i want to implement it on my own or if there is a pure .net library out there that would also work.</p>
  
  <p>I have no idea where to start?</p>
  
  <p>Edit: i found a few documents <a href="http://upnp.org/sdcps-and-certification/standards/sdcps/" rel="nofollow">Here</a> is there any other source of information out there?</p>