Flash Player for ActiveX (Internet Explorer - 18.104.22.168 (can ONLY be acquired via Windows Update with Win8 or 8.1)
Flash Player Plug-in (All other browsers) - 22.214.171.124
If you;re using IE11, know that Microsoft INTENTIOANLLY screwed up the "user agent strings" in it to deliberately prevent websites from detecting what it is. They say thios was a wise decision, but it was far from it.
The pages can't recognize the browser, so they don't recognize any of the plug-ins, like Flash Player. So far, Microsoft has made NO indication that they have any plan to fix it soon.
Microsoft's recommendation is to use Compatibility View for affected pages, and "pretend" you're using an different browser. Trouble with that is it has seen limited success at best, and you have to individually enable it for EVERY page that has problems.
I'm not big on "pretending" so I recommend actually using another browser.
ANY of those will work where IE11 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.