tools to search keyword in Microsoft word file or other files
(1)
SearchMyFiles 2.82 免安裝中文版 - 取代Windows內建搜尋功能
http://www.azofreeware.com/2014/03/searchmyfiles-248-windows.html
(2)
Agent Ransack - Free File Searching Utility
https://www.mythicsoft.com/agentransack