C# 制作加密狗 使其限制软件使用次数

 #region 加密狗
        SoftKeyPWD Ytsoftkey = new SoftKeyPWD();
        public static string KeyPath;
        string outstring = "";
        bool sum = true;
        bool key = false;
        public void Dog()
        {
            RegistryKey RootKey, RegKey;
            // RegistryKey key = Registry.LocalMachine;
            RegistryKey software = Registry.CurrentUser.CreateSubKey("Software\\Classes\\VirtualStore\\MACHINE\\SOFTWARE\\WOW6432Node\\Microsoft\\ASD");
            //在HKEY_LOCAL_MACHINE\SOFTWARE下新建名为test的注册表项。如果已经存在则不影响！

            //项名为：HKEY_CURRENT_USER\Software
            RootKey = Registry.CurrentUser.OpenSubKey("Software\\Classes\\VirtualStore\\MACHINE\\SOFTWARE\\WOW6432Node\\Microsoft", true);

            //打开子项：HKEY_CURRENT_USER\Software\MyRegDataApp
            //我这里是检测xml里边文字 并用，分割
            string[] ceshi = package.getxml("cceshi.xml", "Product/ceshi", "value").Split(',');
            if ( ceshi.Length > 500)
            {