>>Hi Sergey,
>>
>>I've checked Admin Power User, User and Guest with W2K XP Pro, and W2K8.
>>
>>the result is that every group is returned by the corresponding RID plus RID_USERS returns true under all circumstances.
>>IOW User is active only if all other or false.
>>
>>Under W2K8 the Power User Group is mapped to user. (it returns true to RID_USERS only and behaves like.)
>>
>Hi Agnes
>
>Did I understand you correctly that under W2K8 the Power User is the same as User(no additional rights)?

As far as I see yes. For example write to HKLM is denied. The group seems to be depraced, there is a statement in the desctiption of the group. It seems to be mapped to user. The group is not listed under a single data in the user security (I do not know exact location in englisch, my windows is geman), but it works like user.

Agnes