using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;

namespace ConsoleApplication1
{
    public static class ProcessExtensions 
    { 
        private static string FindIndexedProcessName(int pid) 
        { 
            var processName = Process.GetProcessById(pid).ProcessName; 
            var processesByName = Process.GetProcessesByName(processName); 
            string processIndexdName = null; 
            for (var index = 0; index < processesByName.Length; index++)
            { 
                processIndexdName = index == 0 ? processName : processName + "#" + index;
                var processId = new PerformanceCounter("Process", "ID Process", processIndexdName); 
                if ((int)processId.NextValue() == pid) 
                { 
                    return processIndexdName; 
                } 
            } 
            return processIndexdName; 
        } 

        private static Process FindPidFromIndexedProcessName(string indexedProcessName) 
        { 
            var parentId = new PerformanceCounter("Process", "Creating Process ID", indexedProcessName); 
            return Process.GetProcessById((int)parentId.NextValue()); 
        } 

        public static Process Parent(this Process process) 
        { 
            return FindPidFromIndexedProcessName(FindIndexedProcessName(process.Id));
        } 
    }
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(Process.GetCurrentProcess().Parent().ProcessName); 
        }
    }
}