ACPI 是 Advanced Configuration and Power Interface(高级配置与电源管理) 的缩写，是 Intel、Microsoft 和东芝共同开发的一种电源管理标准。ACPI 是 Windows 的一部分，它帮助操作系统控制划拨给每一件与计算机相连的设备的电量， 有了ACPI，操作系统就可以把不同的外设关闭。
现实的讲装上它以后，快捷键就可以使用了。我装华硕本本常用这个。不然直接装hotkey会告诉你“can't open acpi atk0100 kernel mode driver ”xp系统下是这个样子，安装好后无此问题，快捷键正常使用。
HOW TO INSTALL ATK0100 ACPI CONTROL DRIVER IN WINDOWS XP:
1. During Windows XP OS found a "Unknown" device.
2. Click on "Search for a suitable driver for my device (recommended) and click "Next" button
3. Only choice "Specify a location" and click on "Next" button.
4. Click on "Browse..." to your driver location. (example: CDROM driver:\ATK0100\WinXP)
5. Click on "Open" button and "OK" button to start driver installation.
6. If OS request you to "Insert Disk", please "Browse..." to your driver location.
7. Click on "Finish" button.
8. You need to Restart System for driver work fine.
ATK0100 ACPI UTILITY For XP 驱动下载：
http://drivers.softpedia.com/get/Other-DRIVERS-TOOLS/Others/Asus-ATK0100-ACPI-Utility-104321561.shtml
http://download.cnet.com/ATK0100-ACPI-UTILITY/3000-2110_4-147374.html
ATK0100 ACPI UTILITY For Windows 7 驱动下载：
http://vdisk.weibo.com/s/t2ix_GMKm-3Ue
相关：ATK驱动
http://dlsvr04.asus.com/pub/ASUS/nb/Apps_for_Win8/ATKPackage/ATKPackage_Win7_8_VER100027.zip