🚀 go-pugleaf

I think the question Ros asked is perfectly appropriate. I work for an educational institution where students must have certain plug-ins enabled to take the online courses. So long as the user is informed beforehand, I see nothing wrong with this (e.g., "click here to detect whether whether your computer has the required software"). The informed user won't need to click; the uninformed computer user will appreciate the automated process. 



The following link shows how to detect common browser plug-ins. However, it does not detect for version number. 

Here: http://www.javascriptkit.com/script/script2/plugindetect.shtml <http://www.javascriptkit.com/script/script2/plugindetect.shtml> 

Webmonkey has a script to permit version detection of various plugins, but it requires knowing the name of the ActiveX control used. http://hotwired.lycos.com/webmonkey/reference/javascript_code_library/wm_pluginbot/ <http://hotwired.lycos.com/webmonkey/reference/javascript_code_library/wm_pluginbot/> 

Unfortunately, it doesn't offer a sample use of Adobe. You're on your own, but this is a start.