running Symantec Norton Security Suite version 22.5.4.24 with current live updates running Windows 7 Ultimate 32bit w/latest updates (5) made sure that IE 'ActiveX Filtering' is turned OFF (ie, Unchecked) (4) not opening Task Manager, allowing iexplorer.exe processes (2 of them) to continue running after closing the IE app. (3) opening Task Manager and ending the iexplorer.exe processes still showing after closing IE (2) turning off my Symantec/Norton anti-virus during download & install (1) downloading & running the independent activex control install package from adobe
I have tried the following install scenarios: I attempted download and installation of Flash Player from several times, each time the installer launches, downloads to 100%, and proceeds to install but always fails with error 'ActiveX Control could not be registered'. A few weeks ago they stopped playing, and IE displays the error message that Flash Player is required for such videos.
I have been able to successfully play videos presumably requiring Flash Player (eg, Facebook) in my Internet Explorer 11 browser for quite awhile now.