C# 注册自己的右键菜单 (文件夹/文件)

// 添加到注册表
private void btnRegister_Click(object sender, EventArgs e)
{
    if (this.tbMenuTitle.Text.Length == 0) return;
    
    // 注册到文件
    if (this.ckRegToFile.Checked)
    {
        RegistryKey shell = Registry.ClassesRoot.OpenSubKey("*", true).OpenSubKey("shell", true);
        if (shell == null) shell = Registry.ClassesRoot.OpenSubKey("*", true).CreateSubKey("shell");
        RegistryKey custome = shell.CreateSubKey(this.tbMenuTitle.Text);
        RegistryKey cmd = custome.CreateSubKey("command");
        cmd.SetValue("", Application.ExecutablePath + " %1");
        cmd.Close();
        custome.Close();
        shell.Close();
    }
    // 注册到文件夹
    if (this.ckRegToDir.Checked)
    {
        RegistryKey shell = Registry.ClassesRoot.OpenSubKey("directory", true).OpenSubKey("shell", true);
        if (shell == null) shell = Registry.ClassesRoot.OpenSubKey("directory", true).CreateSubKey("shell");
        RegistryKey custome = shell.CreateSubKey(this.tbMenuTitle.Text);
        RegistryKey cmd = custome.CreateSubKey("command");
        cmd.SetValue("", Application.ExecutablePath + " %1");
        cmd.Close();
        custome.Close();
        shell.Close();
    }
    MessageBox.Show("注册成功!", "提示");
}
// 反注册
private void btnUnRegister_Click(object sender, EventArgs e)
{
    RegistryKey shell = Registry.ClassesRoot.OpenSubKey("*", true).OpenSubKey("shell", true);
    if (shell != null) shell.DeleteSubKeyTree(this.tbMenuTitle.Text);            
    shell = Registry.ClassesRoot.OpenSubKey("directory", true).OpenSubKey("shell", true);
    if (shell != null) shell.DeleteSubKeyTree(this.tbMenuTitle.Text);
    shell.Close();
    MessageBox.Show("反注册成功!", "提示");
}