using System;
using System.Diagnostics;
using System.Management;


namespace Proce
{
    public class Pro
    {
        public static string GetProcessUserName(int pID)
        {
            string i = null;
            SelectQuery query1 = new SelectQuery("Select * from Win32_Process WHERE processID=" + pID);
            ManagementObjectSearcher searcher = new ManagementObjectSearcher(query1);
            try
            {
                foreach (ManagementObject disk in searcher.Get())
                {
                    ManagementBaseObject inPar = null;
                    ManagementBaseObject outPar = null;
                    inPar = disk.GetMethodParameters("GetOwner");
                    outPar = disk.InvokeMethod("GetOwner", inPar, null);
                    i = outPar["User"].ToString();
                    break;
                }
            }
            catch
            {
                i = "SYSTEM";
            }
            return i;
        }
    }
}