Just a very quick post for future reference:
Platform to install on: Windows 2008 R2 Server, IE.
See this URL from Adobe Forum:
https://forums.adobe.com/thread/889580
Direct download of IE active-x installer (Version 13 extended support):
http://download.macromedia.com/get/flashplayer/current/licensing/win/install_flash_player_13_active_x.exe
