changereg

获取 电脑 CPU 硬盘序列号 网卡MAC 主板 显卡 以及MD5 加密(Access to computer CPU hard drive serial number card MAC motherboard graphics and MD5 encryption)

上期技术CTP接口示例源码，可以根据这个示例开发自己的交易平台(Examples of technology interfaces on the CTP source)

说明：  注册表操作，打开注册表，查询，并进行设置。后面有注释部分是进行系统的一些信息进行设置查询。(Registry operation, open the registry, query, and set up. Notes partly behind some of the information system set up inquiries.)

说明：  实现目录中文件查找,遍历,基本实现dir功能(Document the achievement of the directory search, traversal, the basic function of the realization of dir)

vb开发的绘图程序,方便实用,简单易学绘图程序 绘图程序(Vb development drawing program, convenient and practical, easy to learn drawing program drawing program)

windows下的VC++有关于多com接口的编程，是一个在工程中实际用过的例子。(under windows with VC++ programming interface for multi-com, used in a real project.)

不错的后门代码，用了一些驱动技术来隐藏进程，隐藏注册表，希望对大家有所帮助(good backdoor code, used some technology-driven process to conceal, hide the registry, and I hope to help everyone)

vc调用DLL，获取其导出的全局变量值UseExternVarDll的源码(vc call DLL, access to export global variable value UseExternVarDll source)

By throwing an exception to indicate the occurrence of an error(By throwing an exception to indicate the occurrence of an erro)

上网限制：通过添加应用程序黑白名单，禁止或者允许学生机访问指定的网址。(Internet Restrictions: black list by adding an application to prohibit or allow students to access the specified URL.)