https://blog.faceutil.com/2017/03/19/%ec%9d%b4%eb%af%b8%ec%a7%80-%eb%b7%b0%ec%96%b4-%ed%94%84%eb%a1%9c%ea%b7%b8%eb%9e%a8-%ea%bf%80%eb%b7%b0-zviewer-xnview-shell-extension-%e3%8e%9f/