[Samba] How to add a logon Script in Windows 2003 Domain

[updatemyself .]

Hai all

it will be very help full if anyone can tell me how to add a login script..
in windows 2003 Domain...
i need to know where i have to place my script.. (in which folder..... full
path as example)
also how to setup that in ADS...
there is many restricted users in my domain...
but i need to run a internal Time syncrinization script for every user..
while they login
with a perticular time server in my network only..
the script is ready with me.. all i need to know..
how i can setup this in my ADS

Thank you in advance..
Jerrynikki