KeyOff 监视键盘和鼠标，如果指定时间长度内没有键或鼠标活动，则启动计算机关闭。它可以通过 Windows 任务计划程序手动或自动启动。可以通过配置屏幕配置关机时间和许多其他参数。它还可用于关闭远程计算机。已配置为强制关闭所有正在运行的应用程序。KeyOff 是 JSutils 软件实用程序组的一部分，其主题是节能。程序通常在系统托盘中运行。需要注册码（个人非商业用途免费）。
版本历史记录
- 版本 2.5 发布于 2009-03-18
次要更新以更新帮助并修复关机时间中的一秒错误。 - 版本 2.3 发布于 2008-11-19
删除日志文件中的杂散行。帮助更新到在常见问题解答中涵盖 Vista UAC，更正了日志文件帮助页中的错误，以及有关将主端口和从端口设置为替代值的额外信息。
软件信息
终端用户许可协议
Software Licence KeyOff Version 2.5 14-March-2009 Copyright A. J. Shadlock 2007-2009 www.jsutils.com END-USER LICENCE AGREEMENT This End-User Licence Agreement is a legal agreement between you (an individual or a single entity) and the author of this Software for the software product KeyOff. By installing, copying, or otherwise using KeyOff, you agree to be bound by the terms of this Licence. If you do not agree to the terms of this Licence do not install or use KeyOff. PRODUCT LICENCE KeyOff is protected by copyright laws and international copyright treaties, as well as other intellectual property laws and treaties. KeyOff is licenced, not sold. The definition of KeyOff includes any files generated by KeyOff, such as log files and any electronic documentation. GRANT OF LICENCE This Licence grants you the right to install and use an unlimited number of copies of KeyOff for personal non-commercial use only. You may not sell for profit, use commercially or distribute 'KeyOff' without first obtaining a licence via the web site above. COPYRIGHT All title and copyrights in and to 'KeyOff' (including but not limited to any images and text incorporated into or supplied with 'KeyOff'), all and any copies of KeyOff are owned by the Author of this Software. KeyOff is protected by copyright laws and international treaty provisions. Therefore, you must treat 'KeyOff' like any other copyrighted material. WARRANTY The Author of this Software expressly disclaims any warranty for KeyOff. KeyOff and any related documentation is provided "as is" without warranty of any kind, either express or implied, including, without limitation, the implied warranties or merchantability, fitness for a particular purpose, or non infringement. The entire risk arising out of use or performance of KeyOff remains with the user. LIABILITY In no event shall the author of this Software be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or any other financial loss) arising out of the use of or inability to use KeyOff, even if the Author of this Software has been advised of the possibility of such damages.