This policy setting allows you to manage the preservation of information in the browser's history in favorites in an XML store or directly within a Web page saved to disk. When a user returns to a persisted page the state of the page can be restored if this policy setting is appropriately configured.If you enable this policy setting users can preserve information in the browser's history in favorites in an XML store or directly within a Web page saved to disk.If you disable this policy setting users cannot preserve information in the browser's history in favorites in an XML store or directly within a Web page saved to disk.If you do not configure this policy setting users cannot preserve information in the browser's history in favorites in an XML store or directly within a Web page saved to disk.
Windows Components\Internet Explorer\Internet Control Panel\Security Page\Restricted Sites Zone
User
At least Internet Explorer 6.0 in Windows XP with Service Pack 2 or Windows Server 2003 with Service Pack 1
HKCU\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4!1606
inetres.admx