This policy setting determines whether Internet Explorer MIME sniffing will prevent promotion of a file of one type to a more dangerous file type.If you enable this policy setting MIME sniffing will never promote a file of one type to a more dangerous file type.If you disable this policy setting Internet Explorer processes will allow a MIME sniff promoting a file of one type to a more dangerous file type.If you do not configure this policy setting MIME sniffing will never promote a file of one type to a more dangerous file type.
Policy path:
Windows Components\Internet Explorer\Security Features\Mime Sniffing Safety Feature
Scope:
User
Supported on:
At least Internet Explorer 6.0 in Windows XP with Service Pack 2 or Windows Server 2003 with Service Pack 1
Registry settings:
HKCU\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING!(Reserved) HKCU\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING!explorer.exe HKCU\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING!iexplore.exe
Filename:
inetres.admx