一、根据进程名获取进程的用户名?

需要添加对 System.Management.dll 的引用

using System.Diagnostics;
using System.Management;

static void Main(string[] args)
{
foreach (Process p in Process.GetProcesses())
       {
            Console.Write(p.ProcessName);
            Console.Write("----");
            Console.WriteLine(GetProcessUserName(p.Id));
       }

       Console.ReadKey();
}

private static string GetProcessUserName(int pID)
{
    string text1 = null;

    SelectQuery query1 = new SelectQuery("Select * from Win32_Process WHERE processID=" + pID);
    ManagementObjectSearcher searcher1 = new ManagementObjectSearcher(query1);

    try
    {
        foreach (ManagementObject disk in searcher1.Get())
        {
            ManagementBaseObject inPar = null;
            ManagementBaseObject outPar = null;

            inPar = disk.GetMethodParameters("GetOwner");

            outPar = disk.InvokeMethod("GetOwner", inPar, null);

            text1 = outPar["User"].ToString();
            break;
        }
    }
    catch
    {
        text1 = "SYSTEM";
    }

    return text1;
}

进程名 是 p.ProcessName

二、获取进程

using System.Diagnostics;
//【注】System.Diagnostics 命名空间提供特定的类，使您能够与系统进程、事件日志和性能计数器进行交互。
string str = "";
Process[] processes;
//Get the list of current active processes.
processes = System.Diagnostics.Process.GetProcesses();
//Grab some basic information for each process.
Process process;
for(int i = 0;i<processes.Length-1;i++)
{
process = processes[i];
str = str + Convert.ToString(process.Id) + " : " +
process.ProcessName + "\r\n";
}
System.Windows.Forms.MessageBox.Show(str);
txtProcessID.Text = processes[0].Id.ToString();

//显示进程相关信息
string s = "";
System.Int32 processid;
Process process;
processid = Int32.Parse(txtProcessID.Text);
process = System.Diagnostics.Process.GetProcessById(processid);
s = s + "该进程的总体优先级类别:" + Convert.ToString(process.PriorityClass) + " \r\n";
s = s + "由该进程打开的句柄数:" + process.HandleCount + "\r\n";
s = s + "该进程的主窗口标题:" + process.MainWindowTitle + "\r\n";
s = s + " 该进程允许的最小工作集大小:" + process.MinWorkingSet.ToString() + " \r\n";
s = s + "该进程允许的最大工作集大小:" +