After installing KB978542 last night my net remoting win service stopped working because of : Service cannot be started. System.Runtime.Remoting.RemotingException: Remoting configuration failed with the exception 'System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions at System.Runtime.Remoting.Channels.Http.HttpServerChannel.StartListening(Object data) at System.Runtime.Remoting.Channels.Http.HttpServerChannel..ctor(IDictionary properties, IServerChannelSinkProvider sinkProvider) at System.Runtime.Remoting.Channels.Http.HttpChannel..ctor(IDictionary properties, IClientChannelSinkProvider clientSinkProvider, IServerChannelSinkProvider serverSinkProvider) --- End of inner exception stack trace --- at System.RuntimeMethodHandle._InvokeConstructor(Object[] args, SignatureStruct& signature, IntPtr declaringType) at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo c...

run it from the Visual Studio debugger. What is detail fails?"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

I solve the problem by change a service type from LOCAL SYSTEM -> to NETWORK SERVICE