[英]How to detect if an Internet Explorer plugin is already installed using JavaScript
For Firefox, it is possible to detect if a Firefox extension is installed using JavaScript by checking whether a specific image is existing on chrome://. 对于Firefox,可以通过检查chrome://上是否存在特定图像来检测是否使用JavaScript安装了Firefox扩展。 But, how can i do the detection on Internet Explorer for an Internet Explorer plugin using JavaScript or others. 但是,如何使用JavaScript或其他方法在Internet Explorer上检测Internet Explorer插件。
Thanks. 谢谢。
Im not sure wich plugin you want to detect, but this might help you 我不确定你想要检测哪个插件,但这可能对你有帮助
http://www.builtfromsource.com/2007/06/26/detecting-plugins-in-internet-explorer-and-a-few-hints-for-all-the-others/ http://www.builtfromsource.com/2007/06/26/detecting-plugins-in-internet-explorer-and-a-few-hints-for-all-the-others/
EDIT: Original link is 404 编辑:原始链接是404
http://www.matthewratzloff.com/blog/2007/06/26/detecting-plugins-in-internet-explorer-and-a-few-hints-for-all-the-others/ http://www.matthewratzloff.com/blog/2007/06/26/detecting-plugins-in-internet-explorer-and-a-few-hints-for-all-the-others/
EDIT: Internet Archive to the rescue 编辑:互联网档案救援
https://web.archive.org/web/20170806025526/http://www.matthewratzloff.com/blog/2007/06/26/detecting-plugins-in-internet-explorer-and-a-few-hints-for-all-the-others/ https://web.archive.org/web/20170806025526/http://www.matthewratzloff.com/blog/2007/06/26/detecting-plugins-in-internet-explorer-and-a-few-hints-参加的所有最别人/
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