Windows Vista的User Account Control (UAC)一直是争议极大的功能,根据Vista开发团队的统计,有关于这方面的反馈数量最多,安全团队在Beta2的基础上大幅修正了UAC,可能您已经在RC1中感受到了,但还是建议看一下UAC Blog上的视频更新报告.
内含视频
观看:UAC Improvements in Release Candidate 1 (RC1) Video

Other improvements besides prompt reduction that we've made to Windows Vista RC1 are:

    * ActiveX installer service enables standard users to install approved ActiveX controls.

    * UAC prompts will not “steal focus” from the user's task. If the operating system cannot determine that the prompt was generated from the foreground window the current user is using, we will alert the user with a highlighted operation in the taskbar that an application is requesting elevated privileges. The user can select to elevate at his or her convenience and not be disrupted by an unplanned application elevation.

    * Elevations are now blocked in the user's logon path. Applications improperly elevating during each and every logon were a significant source of feedback from the Beta 2 release, and based on that feedback, we are disallowing elevations during logon.

    * The command prompt window will now read “Administrator” in the title bar if run with elevated permissions.

    * Improved performance when switching to the secure (dimmed) desktop to display the prompts. We received significant feedback that the small delays during switching were disruptive, and we have worked with the video and display teams to enhance the user experience in this area.

访问:UACBlog