KeyOff 監視鍵盤和滑鼠，如果指定時間長度內沒有鍵或滑鼠活動，則啟動電腦關閉。它可以通過 Windows 任務計劃程式手動或自動啟動。可以通過配置螢幕配置關機時間和許多其他參數。它還可用於關閉遠端電腦。已配置為強制關閉所有正在運行的應用程式。KeyOff 是 JSutils 軟體實用程式組的一部分，其主題是節能。程式通常在系統托盤中運行。需要註冊碼（個人非商業用途免費）。
版本歷史記錄
- 版本 2.5 發佈於 2009-03-18
次要更新以更新幫助並修復關機時間中的一秒錯誤。 - 版本 2.3 發佈於 2008-11-19
刪除紀錄檔中的雜散行。説明更新到在常見問題解答中涵蓋 Vista UAC，更正了日誌檔幫助頁中的錯誤，以及有關將主埠和從埠設置為替代值的額外資訊。
軟體細節
終端使用者許可協定
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.