Parameters Macro Excel 2007 trought GPO

Hi,

I want to parameters Macro on Excel 2007 trought GPO.  I made a script but it works only if the user is a workstation local admin :

On Error resume next

Const HKEY_CURRENT_USER = &H80000001

strComputer = "."
Set objRegistry = GetObject("winmgmts:\\" & strComputer & "\root\default:StdRegProv")
 
strKeyPath = "Software\Policies\Microsoft\Office\12.0\Excel\Security"

strValueName = "VBAWarnings"
dwValue = 2
objRegistry.SetDWORDValue HKEY_CURRENT_USER, strKeyPath, strValueName, dwValue


I want to make it for users that are not local admin.

Workstations are Windows XP and DC is 2008 Server.

Thanks for any help!