Link: Group Policy Settings Reference Windows Internet Explorer 9

This spreadsheet lists the policy settings for computer and user configurations included in the administrative template files (admx/adml) delivered with Windows Internet Explorer 9. The policy settings included in this spreadsheet cover Internet Explorer 5, Internet Explorer 6, Internet Explorer 7, Internet Explorer 8 and Internet Explorer 9. These files are used to expose policy settings when you edit Group Policy objects (GPOs) using Group Policy Object Editor (also known as GPEdit).