public MainViewModel() { ProxyTraceService service = new ProxyTraceService(EventReceived); _serviceHost = new ServiceHost( service, ProxyTraceListener.DefaultEndpointAddress); _serviceHost.AddServiceEndpoint( typeof(IProxyTraceService), new NetNamedPipeBinding(NetNamedPipeSecurityMode.None), ProxyTraceListener.DefaultEndpointAddress); _serviceHost.Open(); _viewers.Add(new DefaultDisplayTraceEvents()); }