title: WCF with tcp binding and portSharingEnabled issue
body: <p>the moment i add portSharingEnabled feature in my config file then i am getting error called </p>
  
  <pre><code>The service endpoint failed to listen on the URI 'net.tcp://localhost:5555/Calculator'
  because access was denied.  Verify that the current user is granted access in the 
  appropriate allowAccounts section of SMSvcHost.exe.config.
  </code></pre>
  
  <p>to be very honest i just do not understand why i am getting this error and how to fix it.</p>
  
  <p>here is my config file details</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt;
  &lt;configuration&gt;
      &lt;system.serviceModel&gt;
          &lt;services&gt;
              &lt;service name="CalculatorServer.Calculator" behaviorConfiguration="CalculatorBehavior"&gt;
                  &lt;endpoint address="net.tcp://localhost:5555/Calculator" binding="netTcpBinding" bindingConfiguration="PortSharingBinding"
                      contract="CalculatorInterFace.ICalculator" /&gt;
  
                  &lt;endpoint address="net.tcp://localhost:5555/Calculator/mex"
                            binding="mexTcpBinding" contract="IMetadataExchange"/&gt;
              &lt;/service&gt;
          &lt;/services&gt;
          &lt;bindings&gt;
              &lt;netTcpBinding&gt;
                  &lt;binding name="PortSharingBinding" portSharingEnabled="true"&gt;
                      &lt;security mode="None"/&gt;
                  &lt;/binding&gt;
              &lt;/netTcpBinding&gt;
          &lt;/bindings&gt;
          &lt;behaviors&gt;
              &lt;serviceBehaviors&gt;
                  &lt;behavior name="CalculatorBehavior"&gt;
                      &lt;serviceMetadata httpGetEnabled="false"/&gt;
                      &lt;serviceDebug includeExceptionDetailInFaults="true"/&gt;
                  &lt;/behavior&gt;
              &lt;/serviceBehaviors&gt;
          &lt;/behaviors&gt;
      &lt;/system.serviceModel&gt;
  &lt;/configuration&gt;
  </code></pre>
  
  <p>and this way i am try to start my service.</p>
  
  <pre><code>public class Program
      {
          static void Main(string[] args)
          {
              using (ServiceHost host = new ServiceHost(typeof(Calculator)))
              {
                  host.Open();
                  Console.WriteLine("Server Started");
                  Console.ReadLine();
                  host.Close();
              }
          }
      }
  </code></pre>
  
  <p>please guide me what to do and what else i need to add in my config file to fix this error. thanks</p>