Internet Explorer places zone restrictions on each Web page it opens which are dependent upon the location of the Web page (Internet Intranet Local Machine zone etc.). Web pages on the local computer have the fewest security restrictions and reside in the Local Machine zone.Local Machine zone security applies to all local files and content processed by Internet Explorer. This feature helps to mitigate attacks where the Local Machine zone is used as an attack vector to load malicious HTML code.If you enable this policy setting the Local Machine zone security applies to all local files and content processed by Internet Explorer.If you disable this policy setting Local Machine zone security is not applied to local files or content processed by Internet Explorer.If you do not configure this policy setting the Local Machine zone security applies to all local files and content processed by Internet Explorer.
Windows Components\Internet Explorer\Security Features\Local Machine Zone Lockdown Security
User
At least Internet Explorer 6.0 in Windows XP with Service Pack 2 or Windows Server 2003 with Service Pack 1
HKCU\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_LOCALMACHINE_LOCKDOWN!(Reserved) HKCU\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_LOCALMACHINE_LOCKDOWN!explorer.exe HKCU\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_LOCALMACHINE_LOCKDOWN!iexplore.exe
inetres.admx