Allow Internet Explorer to play media files that use alternative codecs
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Policy overview

Key metadata and intent for this policy.

Category
Windows Components > Internet Explorer > Internet Settings > Advanced settings > Multimedia
Supported on
At least Internet Explorer 9.0

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.

Internal name
EnableAlternativeCodec
Policy ID
90a701a3f157
Elements
0

Registry values

How enabled and disabled states update the registry.

ScopeRegistry locationTypeEnabled valueDisabled valueCopy
Path
Software\Policies\Microsoft\Internet Explorer\Main
Value name
EnableAlternativeCodec
REG_SZ
HKLM
yes
HKCU
yes
HKLM
no
HKCU
no
Registry location
Type REG_SZ · Both
Path
Software\Policies\Microsoft\Internet Explorer\Main
Value name
EnableAlternativeCodec
Hive
HKLM
Enabled value
yes
Disabled value
no
Hive
HKCU
Enabled value
yes
Disabled value
no

Policy elements

Inputs and configuration options exposed by this policy.

This policy has no additional user input fields.