How to disable file hosting in IIS using C # code

Question

I found the code snippet below that is used to disable file monitoring (file change notification) on the IIS server, but the code does not work as expected. The monitor object below is set to NULL. Not sure if any additional code or any other necessary settings are required. Can someone suggest why this might get NULL or suggest if there is a better way to do this in C # -

//FIX disable AppDomain restart when deleting subdirectory

//This code will turn off monitoring from the root website directory.

//Monitoring of Bin, App_Themes and other folders will still be operational, so updated DLLs will still auto deploy.

System.Reflection.PropertyInfo p = typeof(System.Web.HttpRuntime).GetProperty("FileChangesMonitor", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static);

object o = p.GetValue(null, null);

System.Reflection.FieldInfo f = o.GetType().GetField("_dirMonSubdirs", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.IgnoreCase);

object monitor = f.GetValue(o); //Returns NULL

System.Reflection.MethodInfo m = monitor.GetType().GetMethod("StopMonitoring", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic); m.Invoke(monitor, new object[] { }); 

Answer 1

I use the following code on .Net 3.5 SP1:

var theRuntime = typeof(HttpRuntime).GetField("_theRuntime", BindingFlags.NonPublic | BindingFlags.Static).GetValue(null);
var fcmField = typeof(HttpRuntime).GetField("_fcm", BindingFlags.NonPublic | BindingFlags.Instance);

var fcm = fcmField.GetValue(theRuntime);
fcmField.FieldType.GetMethod("Stop", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(fcm, null);