Adding Sites with a Registry Merge
Web sites can be added to the Intranet or Trusted sites zone by directly modifying the registry. The key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\EscDomains contains the zone mappings under the enhanced security configuration. Each registry key that is below this key in the registry hierarchy is a Web site domain. Each of these keys has values which indicate the allowed protocol and the zone to which that protocol belongs for the domain. A value of 0x001 indicates the Intranet zone and a value of 0x002 indicates the Trusted sites zone.
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