Proxy
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings
Stores configuration data for the policy setting Disable changing proxy settings.
To change the value of this entry, use the Group Policy Object Editor (Gpedit.msc). The corresponding policy is located in Administrative Templates\Windows Components\Internet Explorer.