Policy
All Processes
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, the Mime Sniffing Safety Feature is enabled for all processes. If you disable or do not configure this policy setting, the Mime Sniffing Safety Feature is disabled for all processes.
PackMicrosoft Windows
CategoryWindows Components / Internet Explorer / Security Features / Mime Sniffing Safety Feature
Policy ID
212388353097Internal name
IESF_PolicyAllProcesses_6Registry
Copy registry mappings
HKLM\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING\* (enabled) = 1
HKLM\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING\* (disabled) = 0HKCU\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING\* (enabled) = 1
HKCU\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING\* (disabled) = 0Policy notes
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, the Mime Sniffing Safety Feature is enabled for all processes. If you disable or do not configure this policy setting, the Mime Sniffing Safety Feature is disabled for all processes.