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我们多年来一直使用 ServiceHost 在我们的应用程序之间进行本地通信。我们打开一个 net.pipe：net.pipe://localhost/OurCompanyName/

在 Windows 10 补丁KB4480966到来之前，这一直很好。

这是打开服务主机的代码：

NetNamedPipeBinding binding = new NetNamedPipeBinding();
binding.MaxConnections = 100;
binding.MaxReceivedMessageSize = int.MaxValue;
binding.Security.Mode = NetNamedPipeSecurityMode.Transport;
binding.Security.Transport.ProtectionLevel = System.Net.Security.ProtectionLevel.EncryptAndSign;
//binding.ReceiveTimeout = new TimeSpan(0, 0, 10, 0);                     

this.serviceHost = new ServiceHost(typeof(LocalService), new Uri[] { new Uri(hostBaseAddress) });
this.serviceHost.AddServiceEndpoint(typeof(ILocalService), binding, localServiceEndPointAddress);

foreach (ServiceEndpoint ep in this.serviceHost.Description.Endpoints)
{
    foreach (OperationDescription op in ep.Contract.Operations)
    {
        DataContractSerializerOperationBehavior dataContractBehavior =
           op.Behaviors.Find<DataContractSerializerOperationBehavior>()
                as DataContractSerializerOperationBehavior;
        if (dataContractBehavior != null)
        {
            dataContractBehavior.MaxItemsInObjectGraph = int.MaxValue;
        }
    }
}

this.serviceHost.Open();

由于提到的补丁，我们得到了这个异常：

无法侦听管道名称“net.pipe://localhost/OurCompanyName/”，因为另一个管道端点已经在侦听该名称。

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