registery settings
To verify the IE ESC configuration at the RD host, you can check the values of these two registry entries:
1. HKEY_LOCAL_MACHINE\ SOFTWARE\Microsoft\Active Setup\Installed Components\{A509B1A7-37EF-4b3f-8CFC-4F3A74704073}\IsInstalled.
If the value is 1, then Internet Explorer Enhanced Security Configuration is enabled for users. If the value is 0 or the entry is not present, then Internet Explorer Enhanced Security Configuration is disabled for users.
2. HKEY_LOCAL_MACHINE\ SOFTWARE\Microsoft\Active Setup\Installed Components\{A509B1A8-37EF-4b3f-8CFC-4F3A74704073}\IsInstalled.
If the value is 1, then Internet Explorer Enhanced Security Configuration is enabled for administrators. If the value is 0 or the entry is not present, then Internet Explorer Enhanced Security Configuration is disabled for administrators.