创建IIS6应用程序池（C#）

/// <summary>
 /// 创建应用程序池
 /// </summary>
 /// <param name="metabasePath">连接字符串[IIS://localhost/W3SVC/AppPools]</param>
 /// <param name="appPoolName">程序池名称</param>
 /// <param name="Username">用户名</param>
 /// <param name="Password">密码</param>
 static public bool CreateAppPool(string metabasePath, string appPoolName,string Username,string Password)
 {
  try
  {
   if (metabasePath.EndsWith("/W3SVC/AppPools"))
   {
    DirectoryEntry newpool;
    DirectoryEntry apppools = new DirectoryEntry(metabasePath);
    newpool = apppools.Children.Add(appPoolName, "IIsApplicationPool");
    newpool.Properties["WAMUserName"][0] = Username;
    newpool.Properties["WAMUserPass"][0] = Password;
    newpool.Properties["AppPoolIdentityType"][0] = "3";
    newpool.CommitChanges();
    return true;
   }
   else
   {
    return false;
   }
  }
  catch// (Exception ex)
  {
   return false;
  }
 }