Hi again,

This is my confi.file

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <system.serviceModel>
        <services>
            <service name="PerCall.service1">
                <endpoint contract="PerCall.IPerCall" binding="basicHttpBinding"/>
            </service>
            <service name="Singtetone.service1">
                <endpoint contract="Singtetone.ISingletone"
binding="wsDualHttpBinding"/>
            </service>
        </services>
    </system.serviceModel>
</configuration>

and enpoints defined in here for each :

(For percall instance):

namespace PerCallHoster
{

   internal class MyServiceHost
   {
       internal static ServiceHost myServiceHost = null;

       internal static void StartService()
       {
           //Consider putting the baseAddress in the configuration
system
           //and getting it here with AppSettings
           Uri baseAddress = new Uri("http://localhost:8080/
percall");

           //Instantiate new ServiceHost
           myServiceHost = new ServiceHost(typeof(PerCall.PerCall1),
baseAddress);

           //Open myServiceHost
           myServiceHost.Open();
       }

       internal static void StopService()
       {
           //Call StopService from your shutdown logic (i.e. dispose
method)
           if (myServiceHost.State != CommunicationState.Closed)
               myServiceHost.Close();
       }
   }
}

(for Singletone instance) :

namespace SingleToneHoster
{

   internal class MyServiceHost
   {
       internal static ServiceHost myServiceHost = null;

       internal static void StartService()
       {
           //Consider putting the baseAddress in the configuration
system
           //and getting it here with AppSettings
           Uri baseAddress = new Uri("http://localhost:8080/
singletone");

           //Instantiate new ServiceHost
           myServiceHost = new
ServiceHost(typeof(Singtetone.ISingletone), baseAddress);

           //Open myServiceHost
           myServiceHost.Open();
       }

       internal static void StopService()
       {
           //Call StopService from your shutdown logic (i.e. dispose
method)
           if (myServiceHost.State != CommunicationState.Closed)
               myServiceHost.Close();
       }
   }
}

Although i defined the endpoints for each , i got this error
message :

Service 'PerCall.PerCall1' has zero application (non-infrastructure)
endpoints. This might be because no configuration file was found for
your application, or because no service element matching the service
name could be found in the configuration file, or because no endpoints
were defined in the service element

Best Regards,
Hakan Fatih YILDIRIM
MCP