Registering Custom Protocol for Windows Phone 8 App WebBrowser Control-Collection of common programming errors

Recently i had to create a custom uri scheme,and that was pretty easy in your WMAppManifest add:

this is stands after Tokens

than in your App.cs file you redirect to the class which is responsible for the navigation

RootFrame.UriMapper = new CustomUriMapper();

for example

class CustomUriMapper : UriMapperBase
{
    private string tempUri;
    public override Uri MapUri(Uri uri)
    {
        tempUri = System.Net.HttpUtility.UrlDecode(uri.ToString());

        if (tempUri.Contains("XXXX"))
        {
         return new Uri("/MainPage.xaml?parameter=XXXX", UriKind.Relative);
        }
        else
            {
                return new Uri("/MainPage.xaml", UriKind.Relative);
            }           
    }
} 

i hope i helped

EDIT

i have create a small project, and i’m sure it works, please try this

            string url = "xxxx:";
            WebBrowserTask browser = new WebBrowserTask();
            browser.URL = url;
            browser.Show();