Today I’m working on a editor application for JavaScript and HTML5 using WPF WebBrowser, when working with the browser control I noticed that each time I reload the page or click some links there is an annoying sound.

Because my application is reloading the page very frequently I had to disable the WebBrowser sound.

In order to do that I used CoInternetSetFeatureEnabled (Enables or disables a specified feature control.), I’ve made a simple test application to demonstrate this feature.

Download Demo Project

Make sure your application has reference to - using System.Runtime.InteropServices;

And add the below code in your class:

private const int Feature = 21; //FEATURE_DISABLE_NAVIGATION_SOUNDS
private const int SetFeatureOnProcess = 0x00000002;
 
[DllImport("urlmon.dll")]
[PreserveSig]
[return: MarshalAs(UnmanagedType.Error)]
static extern int CoInternetSetFeatureEnabled(int featureEntry,
  [MarshalAs(UnmanagedType.U4)] int dwFlags, 
  bool fEnable);

Using the On \ Off button you can Enable or Disable the WebBrowser sound.

private void BtnOnOffClick(object sender, RoutedEventArgs e)
{
  if (btnOnOff.Content.Equals("Sound On"))
  {
    btnOnOff.Content = "Sound Off";
    CoInternetSetFeatureEnabled(Feature, SetFeatureOnProcess, true);
  }
  else
  {
    btnOnOff.Content = "Sound On";
    CoInternetSetFeatureEnabled(Feature, SetFeatureOnProcess, false);
  }
}

Enjoy