I currently have the lastest version of activex but the plug-in is not installed on my system. I am using ie11. I noticed that some vidoes popup with a message saying I need flash player installed.
If you have Adobe Flash Player installed then do the following:
With IE11 running, click on TOOLS, and then click on Manage Add Ons . Shockwave Flash Object by Adobe should be listed as Enabled.
For IE11 all you need installed is ActiveX Version 220.127.116.11. You would need the Plug in if you were using Firefox for your browser.