<form target='_self' action='upload.php' method='post' enctype='multipart/form-data'>
        <div class = 'testocentrato'>
        <input style='display:none' type='file' accept='.jpg' name='file' id='file'/>
        <input style='display:none' type='submit' id='caricaimmagine' name='caricaimmagine' />
        <input class='inputfile' type='button' value='Scegli file da PC' onclick='document.getElementById('file').click(); document.getElementById('caricaimmagine').click();' />
        <input style='display:none' type='submit' />
        <input class='inputfile' type='submit'  name='eliminaimmagine' onclick='document.getElementById('eliminaimmagine').click();' value='".$lang['TASTO_ELIMINA_FOTO']."' />
        <input type='hidden' name='id_utente' value='".$user['id']."' />        
        </form></div>

• my own Webservice Configurator : create webservice with certificate on IIS
• my own client (WCF client) which consume this webservice

public void Connect()
{
    _connection = new HubConnection(ServerUri);

    if (_enableDebugging)  //<== is True for debugging right now
    {
        _connection.TraceLevel = TraceLevels.All;
        _connection.TraceWriter = Console.Out;
    }

    _hubProxy = _connection.CreateHubProxy(HUB_NAME);

    _hubProxy.On<string>("EchoMessage", EchoMessage);
    _hubProxy.On<AssayDashboardInfo>("ResultsAdded", ResultsAdded);
    _hubProxy.On<AssayDashboardInfo>("ResultsChanged", ResultsChanged);

    _connection.Error += _connection_Error;
    _connection.StateChanged += _connection_StateChanged;

    try
    {
        _connection.Start();
    }
    catch (Exception e)
    {
        _logger.Error("*** Connection failed", e);
    }
}

public void Connect()
{
    _connection = new HubConnection(ServerUri);
    //TODO: Turn off for production
    _connection.TraceLevel = TraceLevels.All;
    _connection.TraceWriter = Console.Out;
    _hubProxy = _connection.CreateHubProxy("DashboardHub");
    _hubProxy.On<string>("EchoMessage", EchoMessageReceived);
    _hubProxy.On<AssayDashboardInfo>("ResultsAdded", ResultsAdded);
    _hubProxy.On<AssayDashboardInfo>("ResultsChanged", ResultsChanged);
    _connection.Error += ex => Console.WriteLine("ERROR!!!!!!!!: {0}", ex.Message); // <==== NEVER FIRES
    _connection.StateChanged += _connection_StateChanged;
    try
    {
        _connection.Start();
    }
    catch (Exception e)
    {
        throw;  //<==== NEVER FIRES
    }
}

try
{
    // There is no method named NotARealMethod on the server
    _hubProxy.Invoke("NotARealMethod");    
}
catch (Exception e)
{
    throw e;  //<== NEVER FIRES
}