后台监控软件，为了达到隐蔽监控的目的，应该满足正常运行时，不显示在任务栏上，在按Ctrl+Alt+Del出现的任务列表中也不显示，管理员可以通过热键调出隐藏的运行界面。要作到这些，必须把当前进程变为一个系统服务，并且定义全局热键。 -Background monitoring software, in order to achieve the purpose of covert monitoring should meet the normal run-time, do not appear in the taskbar, in accordance with Ctrl+ Alt+ Del emerging task list does not show that the administrator can be hidden out of hotkeys operation interface. To do these, we must put the current process into a system service, and the definition of global hotkey.