Policy
Internet Explorer Processes
Microsoft Windows
Policy overview
Key metadata and intent for this policy.
Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2003, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista, WindowsXP
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.
Registry values
How enabled and disabled states update the registry.
| Scope | Registry location | Type | Enabled value | Disabled value | Copy |
|---|---|---|---|---|---|
Path Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING Value name (Reserved) | REG_SZ | HKLM 1 HKCU 1 | HKLM 0 HKCU 0 | ||
Path Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING Value name explorer.exe | REG_SZ | HKLM 1 HKCU 1 | HKLM 0 HKCU 0 | ||
Path Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_MIME_SNIFFING Value name iexplore.exe | REG_SZ | HKLM 1 HKCU 1 | HKLM 0 HKCU 0 |
Policy elements
Inputs and configuration options exposed by this policy.
This policy has no additional user input fields.