Scalable Asynchronous Duplex Communication Between WPF and WCF

<?xml version="1.0"?>
<configuration>

  <system.web>
    <compilation debug="true" targetFramework="4.0" />    
  </system.web>
  <system.serviceModel>

    <services>
      <service name="StockService.SessionsController">
        <endpoint address="SessionsController" binding="wsDualHttpBinding" contract="StockService.Interfaces.ISessionsController" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:50203"/>
          </baseAddresses>
        </host>
      </service>

      <service name="StockService.ServiceWithCallback">
        <endpoint address="ServiceWithCallback" binding="wsDualHttpBinding" contract="StockService.Interfaces.IServiceWithCallback" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:50203"/>
          </baseAddresses>
        </host>
      </service>
      
    </services>

    <behaviors>
      <serviceBehaviors>
        <behavior>
          <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
          <serviceMetadata httpGetEnabled="true"/>
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="true"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>

    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
 <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>
  
</configuration>