Allow Internet Explorer to play media files that use alternative codecs

This policy setting specifies whether Internet Explorer plays media files that use alternative codecs and that require additional software. If you enable this policy setting Internet Explorer plays these files if the appropriate software is installed. If you disable this policy setting Internet Explorer does not play these files. If you do not configure this policy setting the user can change the “Enable alternative codecs in HTML5 media elements” setting on the Advanced tab in the Internet Options dialog box.

Additional Information

  1. Registry path is:

    HKEY_CURRENT_USER -> Software -> Policies -> Microsoft -> Internet Explorer -> Main # EnableAlternativeCodec

  2. The Administrative Template path is:

    Windows Components -> Internet Explorer -> Internet Settings -> Advanced settings -> Multimedia


* Making mistakes while changing registry values can affect your system adversely. We recommend you to create a System Restore point before making registry manipulation. If you're new to Registry Editor, read this beginner's guide.
** To locate the registry and administrative template path, checkout beginner's guide.
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