using System;
using System.DirectoryServices; //要增加此DLL文件

private void button3_Click(object sender, System.EventArgs e)
  {
   try
   {
    DirectoryEntry AD = new DirectoryEntry("WinNT://" +
     Environment.MachineName + ",computer");
    DirectoryEntry NewUser = AD.Children.Add("TestUser1", "user"); //帐号
    NewUser.Invoke("SetPassword", new object[] {"#12345Abc"}); // 密码
    NewUser.Invoke("Put", new object[] {"Description", "Test User from .NET"});
    NewUser.CommitChanges();
    DirectoryEntry grp;

    grp = AD.Children.Find("Guests", "group");
    if (grp != null) {grp.Invoke("Add", new object[] {NewUser.Path.ToString()});}
    Console.WriteLine("Account Created Successfully");
    Console.ReadLine();
   }
   catch (Exception ex)
   {
    Console.WriteLine(ex.Message);
    Console.ReadLine();

   }
  }