微软从vista开始，系统加入了UAC （用户访问控制），来提高系统安全性。

因此原先在xp下开发的VC程序，要访问注册表、system32目录的事情，直接运行，可能无法达到目的。

本文详细描述了使用vc开发uac程序的方法。-Microsoft is starting from the vista, the system joined the UAC (User Access Control), to improve system security. Therefore, in the xp originally developed under the VC process, to access the registry, system32 directory things, direct running, may be unable to achieve their goals. This paper describes the use of vc development uac procedures.