I'm connection IBM.Iseries database in a c# application using ADO.NET iSeries drivers. My WCF service is throwing the error as

"HTTP could not register URL http://+:80/Temporary_Listen_Addresses/771be107-8fa3-46f9-ac01-12c4d503d01e/ because TCP port 80 is being used by another application."

 <system.serviceModel>
<client>
  <endpoint address="http://localhost:8080/Design_Time_Addresses/DataAccessLayer/POEngine/"
    binding="wsDualHttpBinding"  bindingConfiguration="" contract="POServiceReference.IPOEngine"
    name="MyPoBindings">
    <identity>
      <dns value="localhost" />
    </identity>
  </endpoint>
  <endpoint address="http://localhost:8080/Design_Time_Addresses/DataAccessLayer/POEngine/"
    binding="wsDualHttpBinding" bindingConfiguration="PoBindings1"
    contract="POServiceReference.IPOEngine" name="PoBindings">
    <identity>
      <dns value="localhost" />
    </identity>
  </endpoint>
</client>
<bindings>
  <wsDualHttpBinding>
    <binding name="PoBindings1" closeTimeout="00:01:00" openTimeout="00:01:00"
      receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false"
      transactionFlow="false" hostNameComparisonMode="StrongWildcard"
      maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text"
      textEncoding="utf-8" useDefaultWebProxy="true">
      <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
        maxBytesPerRead="4096" maxNameTableCharCount="16384" />
      <reliableSession ordered="true" inactivityTimeout="00:10:00" />
      <security mode="Message">
        <message clientCredentialType="Windows" negotiateServiceCredential="true"
          algorithmSuite="Default" />
      </security>
    </binding>
  </wsDualHttpBinding>
  <wsHttpBinding>
    <binding name="PoBindings" />
  </wsHttpBinding>
</bindings>
<services>
  <service behaviorConfiguration="DataAccessLayer.POEngineBehavior"
    name="DataAccessLayer.POEngine">
    <endpoint address="" binding="wsDualHttpBinding" bindingConfiguration=""
      name="PoBindings" contract="DataAccessLayer.IPOEngine">
      <identity>
        <dns value="localhost" />
      </identity>
    </endpoint>
    <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
    <host>
      <baseAddresses>
        <add baseAddress="http://localhost:8080/Design_Time_Addresses/DataAccessLayer/POEngine/" />
      </baseAddresses>
    </host>
  </service>
</services>
<behaviors>
  <endpointBehaviors>
    <behavior name="NewBehavior" />
  </endpointBehaviors>
  <serviceBehaviors>
    <behavior name="DataAccessLayer.Service1Behavior">
      <serviceMetadata httpGetEnabled="true" />
      <serviceDebug includeExceptionDetailInFaults="false" />
    </behavior>
    <behavior name="DataAccessLayer.POEngineBehavior">
      <serviceMetadata httpGetEnabled="true" />
      <serviceDebug includeExceptionDetailInFaults="false" />
    </behavior>
  </serviceBehaviors>
</behaviors>  </system.serviceModel>

Having the problem also without using any IBM data access. A normal Hello World is also throwing the error.Where i need to change the port address