Server 2008 IE Security Settings - Cant Adjust for member ofAdministrators Group

Server 2008 STD X86
Terminal Services Role installed
User is a member of the local administrator's group

In IE7, select Tools, Internet Options. Security folder tab, highlight
Trusted Sites. The Security level for this zone defaults to Medium and
the slide bar is inactive no matter what I try.

Enable protected mode is unchecked.

What do I need to do to lower the Security Level?

My purpose is to allow an unsigned active-x program from a trusted
source allow my line of business application interact with QuickBooks
2008.

Check your policies for the terminal server, that there is not setting that
blocks the change even for administrators.

I have the same issue, but my security setting is set to high. How can I
change it to medium?

This worked for me:
Go to start > Run and in the search box type: server
On the right side of the page under 'Security Info' click on 'Configure IE ESC'
Turn the Administrators ESC off
Go back to your Trusted Sites page and see if you can configure the zone.
Also, not sure why yet, but I had to reset my home page after making this change

Too bad we don't know what it worked on for you.

Hola Amigos

Aqui tambien podran encontrar la solución

modificando la configuración del servidor y deshabilitando Configure IE ESC