Chrome has its own proprietary Plugin called "PepperFlash". It functions independently of the ActiveX plugin for IE. Frankly, it works better than IE, as do ALL other browsers. IE relies on 1993 technology called ActiveX controls, which the rest of the computing world abandoned twelve years ago, because they present more obstacles to productivity, than the problems they supposedly prevent. I only have IE for testing and troubleshooting. I refuse to use it as my everyday browswer.
I recommend using any other browser.
ANY of those will work where IE won't, with the Flash Player Plug-in (For all other browsers), and Chrome doesn't even need that because it has its own Flash Player plugin built in.
I had previously tried both of these. In the add-on screen, the flash object shows as enabled, but it also shows the publisher as Not Available, which I don't see how it is possible. If I check the flash version, it says that it is disabled. I've followed the instructions on this link: http://helpx.adobe.com/flash-player/kb/flash-player-issues-windows-8.html and tried updating IE to the newest version and it says it is already installed.