Hi,
I'm trying to retrieve a string in my old webservice but it give me an error of 
  The remote server returned an error: NotFound.
and its InnerException is 
  {System.Net.WebException: The remote server returned an error: NotFound. --- System.Net.WebException: The remote server returned an error: NotFound.
     at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
     at System.Net.Browser.BrowserHttpWebRequest.<c_DisplayClass5.b_4(Object sendState)
     at System.Net.Browser.AsyncHelper.<c_DisplayClass2.b_0(Object sendState)
     --- End of inner exception stack trace ---
     at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
     at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
     at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result)}
this is the method which error prompted, this method returns a string format
void client_ValidateUserEncryptedCompleted(object sender, DummyWS.ValidateUserEncryptedCompletedEventArgs e)
    {
        object token = e.Result;
        client = new DummyWS.MachineHistoryWSSoapClient();
        if (token != null)
        {
            client.GetSummaryXMLAsync(token, "", "");
        }
    }
I am currently using Silverlight 4.0 and my ServiceReferences.ClientConfig is
<configuration>
<system.serviceModel>
    <bindings>
        <basicHttpBinding>
            <binding name="MachineHistoryWSSoap" maxBufferSize="2147483647"
                maxReceivedMessageSize="2147483647">
                <security mode="None" />
            </binding>
        </basicHttpBinding>
    </bindings>
    <client>
        <endpoint address="http://localhost/MHVwsModified/MachineHistoryWS.asmx"
            binding="basicHttpBinding" bindingConfiguration="MachineHistoryWSSoap"
            contract="DummyWS.MachineHistoryWSSoap" name="MachineHistoryWSSoap" />
    </client>
</system.serviceModel>
My Web.Config in my web service is 
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
<system.web>
    <compilation debug="true">
        <assemblies>
            <add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /></assemblies></compilation>
    <authentication mode="Windows" />
</system.web>
<system.webServer>
    <directoryBrowse enabled="true" />
</system.webServer>
Any help will be aprreciated thank you.