Restore "classic" search for all users

Hello,
Windows XP Pro, SP3
I have a new install and want to change the unpleasant standard
Windows XP search assistant to the classic one. I have done this in
the past by creating an entry "Use Search Asst" REG_SZ (String Value)
in the following registry key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Explorer\CabinetState

and setting the value to "no"

But my new system has 5 user profiles. Will I have to change this
setting for each user profile?

Is there a way to change to classic search assistant for all users?

Many thanks.

Jack