// This is console application sample
IWFWorkflowService svc = GetWorkflowService();
string processInstanceID = ..//"02C3FA88ADE04750A34B5B3168C25793";
try
	{
    WFBaseActivityInstance[] activityInstance =
    svc.GetActivityInstsByPIID(processInstanceID);
    foreach (WFBaseActivityInstance activity in activityInstance)
        {
        System.Console.WriteLine("Activity DispalyName: '{0}'", activity.DisplayName);
        System.Console.WriteLine("CompletedDate: '{0}'", activity.CompletedDate);
	    }
	}
catch( Exception ex)
	{
    Console.WriteLine("Failed! " + ShUtil.GetSoapMessage(ex) );
    }