Default XP power management

How to set default of XP's power management ???
Coz, if user A login to XP, the power management is XP default.
User A need to set it to not Standby after 30 mins idle.
But when user B login to XP, the power management also keep in XP default.
User B also need to set it manually......
If the workstation need to serve many user, each user need to config it once....... :(

How to config power management to No Standby ??

Thank you.

I believe the only way to do this would be thru "Roaming Profiles". Look at the following link for more info:

http://support.microsoft.com/?kbid=314478

Oh....
It is a big job(trouble job....) on AD config.
:(

Thank you for your support.