This type is used by the .NET framework and is never used directly by your code.

public sealed class DiscoveryRequestHandler : System.Web.IHttpHandler {
// Public Constructors
   public DiscoveryRequestHandler( );
// Public Instance Properties
   public bool IsReusable{get; }                    // implements System.Web.IHttpHandler
// Public Instance Methods
   public void ProcessRequest(System.Web.HttpContext context);   // implements System.Web.IHttpHandler 
}