C#程序删除自身

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Configuration;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace killself
{
    class Program
    {
        static void Main(string[] args)
        {
            BeginKillSelf();
        }
        [DllImport("kernel32.dll")]
        public static extern uint WinExec(string lpCmdLine, uint uCmdShow);
        private static  void BeginKillSelf()
        {
            string vBatFile = Path.GetDirectoryName(Application.ExecutablePath) + "\\a.bat";
            using (StreamWriter vStreamWriter = new StreamWriter(vBatFile, false, Encoding.Default))
            {
                vStreamWriter.Write(string.Format(
                ":del\r\n" +
                " del \"{0}\"\r\n" +
                "if exist \"{0}\" goto del\r\n" + 
                "del %0\r\n", Application.ExecutablePath));
            }
            WinExec(vBatFile, 0);
        }
    }
}