static void Main(string[] args) { ConsoleEvents.StartMonitor(eventType => { FiddlerApplication.Shutdown(); return(false); }); Certification.InstallCertificate(); FiddlerApplication.BeforeRequest += delegate(Fiddler.Session oSession) { oSession.bBufferResponse = true; }; FiddlerApplication.BeforeResponse += delegate(Fiddler.Session oSession) { if (oSession.url.Contains("yts/jsbin/player") && oSession.url.Contains("base.js")) { oSession.utilDecodeResponse(); String originbody = System.Text.Encoding.UTF8.GetString(oSession.responseBodyBytes); var replacedBody = Regex.Replace(originbody, @"([a-zA-Z_]*)\(this,""start"",\!([0-1]),\!([0-1])\)", @"$1(this,""skip"",!$2,!$3)"); bool replaced = !originbody.SequenceEqual(replacedBody); oSession.utilSetResponseBody(replacedBody); Console.WriteLine("gotcha: " + oSession.fullUrl); if (replaced) { Console.WriteLine("modified the functionality of youtube!"); } else { Console.WriteLine("failed to modify the functionality. try up-to-date version."); } } }; //FiddlerApplication.AfterSessionComplete += FiddlerApplication_AfterSessionComplete; FiddlerApplication.AfterSocketAccept += FiddlerApplication_AfterSocketAccept; FiddlerApplication.Startup(8890, true, true, true); Console.WriteLine("I am looking for the ads...! Don't see any messages after opening Youtube? Try delete your cache files."); for (;;) { Thread.Sleep(100000); } }