Inst NAV via Win98 client login script

NAV CE allows for auto installation on the client from the Server. I’ve selected this option but it doesn’t work. I think NAV uses a clientlogin script to do this but I don’t think the client is looking for the login script.
How do I tell the Win98 clients to look for a common login script and how can I view the login script?
I don’t want to install NAV manually from every client if I can avoid it.