<ComVisibleAttribute(False)> _
Public NotInheritable Class
 Activity

Dim instance As Activity

[ComVisibleAttribute(false)] 
public sealed class Activity

[ComVisibleAttribute(false)] 
public ref class Activity sealed

/** @attribute ComVisibleAttribute(false) */ 
public final class Activity

ComVisibleAttribute(false) 
public final class Activity

class SvcClass: IServiceCall 
{
    static int callNumber = 0;
    public void OnCall()
    {
        callNumber++;
        System.Guid contextID = ContextUtil.ContextId;
        Console.WriteLine("This is call number "+ callNumber.ToString());
 
        Console.WriteLine(contextID.ToString());
        System.TimeSpan sleepTime = new System.TimeSpan(0,0,0,10);
 
        System.Threading.Thread.Sleep(sleepTime);
       
    }
}
class EnterpriseServicesActivityClass
{
    [STAThread]
static void Main(string[]
 args)
    {
        ServiceConfig serviceConfig = new ServiceConfig();
        serviceConfig.Synchronization = SynchronizationOption.Required;
        serviceConfig.ThreadPool = ThreadPoolOption.MTA;
        SvcClass serviceCall = new SvcClass();
    Activity activity = new Activity(serviceConfig); 
        activity.AsynchronousCall(serviceCall); 
        activity.AsynchronousCall(serviceCall);
        Console.WriteLine("Waiting for asynchronous calls
 to terminate");
        Console.Read();
    }
}

Public Sub New ( _
    cfg As ServiceConfig _
)

Dim cfg As ServiceConfig

Dim instance As New Activity(cfg)

public Activity (
    ServiceConfig cfg
)

public:
Activity (
    ServiceConfig^ cfg
)

public Activity (
    ServiceConfig cfg
)

public function Activity (
    cfg : ServiceConfig
)

Activity activity = new Activity(serviceConfig);