If XP Pro, use Group Policy.
Local Computer Policy\Computer Configuration\Windows Settings\Scripts
(Startup/Shutdown)
Local Computer Policy\User Configuration\Windows Settings\Scripts
(Logon/Logoff)
%windir%\system32\GroupPolicy\Machine\Scripts\Shutdown
C:\WINDOWS\system32\GroupPolicy\Machine\Scripts\Shutdown
%windir%\system32\GroupPolicy\Machine\Scripts\Startup
C:\WINDOWS\system32\GroupPolicy\Machine\Scripts\Startup
--
Hope this helps. Let us know.
Wes
MS-MVP Windows Shell/User
In