win2k8 workstation - Disabling Internet Explorer Enhanced Security using registry

To turn off Internet Explorer Enhanced Security Configuration, you can remove the IEHarden registry entry from the user account profile. To do this, follow these steps:

1. run Regedit.exe.

2. Locate and then click the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zonemap

3. In the details pane, right-click IEHarden, click Modify, type 0 (zero) in the Value data box, and then click OK.

4. You can also remove this registry entry. Locate and then click the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings

5. In the details pane, right-click IEHardenIENoWarn, click Modify, type 0 (zero) in the Value data box, and then click OK.

6. Exit Registry Editor, and then start Internet Explorer.

7. On the Tools menu, click Internet Options. Click the Advanced tab, click Restore Defaults, and then click OK.

ref:
-http://support.microsoft.com/kb/933991/
-http://www.win2008workstation.com/wordpress/2008/03/08/disabling-internet-explorer-enhanced-security/