Error - An exception occurred: Credentials are either invalid or unspecified

Question

I update an old key at www.bingsmapportal.com..for a test web page. I probably set this key up 6-9 months ago. I haven't used it in a long time and now what to pick up an old project again.

I set it up using the following information

Applicaiton Name: Test

Application url: http://localhost:50656/WebSite1/TestGeocodeService

Type: Trial, Public Website

I created a new web page.

I add a service reference to

http://dev.virtualearth.net/webservices/v1/geocodeservice/geocodeservice.svc?wsdl and called it's namesapce GeocodeService.

On my webform page I have a Button and a label. I have copied the code from http://msdn.microsoft.com/en-us/library/cc966817.aspx

I do not get any build errors for my page. When I run and press the button I only get the message An exception occurred: Credentials are either invalid or unspecified.

My code behind looks like this

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class TestGeocodeService : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        MakeGeocodeRequest();
    }

    private void MakeGeocodeRequest()
    {
        string Results = "";
        try
        {
            // Set a Bing Maps key before making a request
            string key = "Aox8..Real Key blanked out...pqx";

            GeocodeService.GeocodeRequest geocodeRequest = new GeocodeService.GeocodeRequest();

            // Set the credentials using a valid Bing Maps Key
            geocodeRequest.Credentials = new GeocodeService.Credentials();
            geocodeRequest.Credentials.ApplicationId = key;

            // Set the full address query
            geocodeRequest.Query = "1 Microsoft Way, Redmond, WA";

            // Set the options to only return high confidence results
            GeocodeService.ConfidenceFilter[] filters = new GeocodeService.ConfidenceFilter[1];
            filters[0] = new GeocodeService.ConfidenceFilter();
            filters[0].MinimumConfidence = GeocodeService.Confidence.High;

            GeocodeService.GeocodeOptions geocodeOptions = new GeocodeService.GeocodeOptions();
            geocodeOptions.Filters = filters;

            geocodeRequest.Options = geocodeOptions;

            // Make the geocode request
            GeocodeService.GeocodeServiceClient geocodeService =
            new GeocodeService.GeocodeServiceClient("BasicHttpBinding_IGeocodeService");
            GeocodeService.GeocodeResponse geocodeResponse = geocodeService.Geocode(geocodeRequest);

            Results = geocodeResponse.Results[0].DisplayName;

        }
        catch (Exception ex)
        {
            Results = "An exception occurred: " + ex.Message;

        }
        lblMessage.Text = Results;

    }
}