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/// <summary>
/// 創(chuàng)建Windows帳戶
/// </summary>
/// <param name="pathname"></param>
/// <returns></returns>
public static void CreateLocalUser(string username, string password, string description)
{
    DirectoryEntry localMachine = new DirectoryEntry("WinNT://" + Environment.MachineName + ",computer");
    var newUser = localMachine.Children.Add(username, "user");
    newUser.Invoke("SetPassword", new object[] { password });
    newUser.Invoke("Put", new object[] { "Description", description });
    newUser.CommitChanges();
    localMachine.Close();
    newUser.Close();
}

/// <summary>
/// 更改Windows帳戶密碼
/// </summary>
/// <param name="username"></param>
/// <param name="oldPwd"></param>
/// <param name="newPwd"></param>
public static void ChangeWinUserPasswd(string username, string oldPwd, string newPwd)
{
    DirectoryEntry localMachine = new DirectoryEntry("WinNT://" + Environment.MachineName + ",computer");
    DirectoryEntry user = localMachine.Children.Find(username, "user");
    object[] password = new object[] { oldPwd, newPwd };
    object ret = user.Invoke("ChangePassword", password);
    user.CommitChanges();
    localMachine.Close();
    user.Close();
}

/// <summary>
/// 判斷Windows用戶是否存在
/// </summary>
/// <param name="username"></param>
/// <returns></returns>
public static bool ExistWinUser(string username)
{
    try
    {
        using (DirectoryEntry localMachine = new DirectoryEntry("WinNT://" + Environment.MachineName + ",computer"))
        {
            var user = localMachine.Children.Find(username, "user");
            return user != null;
        }
    }
    catch
    {
        return false;
    }
}

/// <summary>
/// 刪除Windows用戶
/// </summary>
/// <param name="username"></param>
/// <returns></returns>
public static bool DeleteWinUser(string username)
{
    try
    {
        using (DirectoryEntry localMachine = new DirectoryEntry("WinNT://" + Environment.MachineName + ",computer"))
        {
            //刪除存在用戶
            var delUser = localMachine.Children.Find(username, "user");
            if (delUser != null)
            {
                localMachine.Children.Remove(delUser);
            }
        }
        return true;
    }
    catch
    {
        return false;
    }
}

/// <summary>
/// 啟用/禁用windows帳戶
/// </summary>
/// <param name="username"></param>
public static void Disable(string username, bool isDisable)
{
    var userDn = "WinNT://" + Environment.MachineName + "/" + username + ",user";
    DirectoryEntry user = new DirectoryEntry(userDn);
    user.InvokeSet("AccountDisabled", isDisable);
    user.CommitChanges();
    user.Close();
}