class MyServiceHost : ServiceHost
    {
        public MyServiceHost(String dep, Type serviceType, params Uri[] baseAddresses)
            : base(serviceType, baseAddresses)
        {
          
            foreach (var cd in this.ImplementedContracts.Values)
            {
                cd.Behaviors.Add(new MyInstanceProvider(dep));
            }
        } 

    }



    public class MyInstanceProvider : Attribute, IInstanceProvider, IContractBehaviorAttribute, IContractBehavior
    {
        private String dep;

        public MyInstanceProvider(String dep)
        {
                this.dep = dep;
        }

        public Type TargetContract
        {
            get { return typeof(MyService); }
        }


        #region IInstanceProvider Members

        public object GetInstance(InstanceContext instanceContext, Message message)
        {
            return new MyService(this.dep);
        }

        public object GetInstance(InstanceContext instanceContext)
        {
           return this.GetInstance(instanceContext,null);
        }

        public void ReleaseInstance(InstanceContext instanceContext, object instance)
        {
        }

        #endregion

        #region IContractBehavior Members

        public void AddBindingParameters(ContractDescription contractDescription, ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
        {
        }

        public void ApplyClientBehavior(ContractDescription contractDescription, ServiceEndpoint endpoint, ClientRuntime clientRuntime)
        {
        }

        public void ApplyDispatchBehavior(ContractDescription contractDescription, ServiceEndpoint endpoint, DispatchRuntime dispatchRuntime)
        {
            dispatchRuntime.InstanceProvider = this;
        }

        public void Validate(ContractDescription contractDescription, ServiceEndpoint endpoint)
        {
        }

        #endregion
    }