C# Http Listener and Parser

This project is to create a simple http listener and parser in c# winform.? My current project has a web browser component to a fixed uri.? I need an http listener to listen to all GET and POST methods.? All GET responses must be parsed and the strings showed in a textbox.? The server sending the GET responses to the browser uses JSON, so you might want to use a JSON parser, but am not sure if that's necessary.? Anyway I want a simple solution that works, a listener, parser and textbox to display the results.? I'll send more details to those who are interested in this. Many thanks..