This is a discussion on gpedit.msc for Vista???? within the Windows 7 , Windows Vista Support forums, part of the Tech Support Forum category. Is there an editable file similar to gpedit.msc in XP but, for Vista?
Jack.Sparrow is right, gpedit.msc isn't available in Home Basic and Home Premium. You have to manually edit the registry in order to change group policy settings. Microsoft has an Excel spreadsheet that lists all the group policy settings and their respective registry keys, so you can probably find what you're looking to change in there.