samba - Aug 2003 - login as a service

Hello,

I have a samba PDC ver 2.2.7 with a large number of win2k client
machines. I'm trying to install sophos antivirus to autoupdate all the
client machines. The software requires a domain login on the PDC (easy)
but the problem is that it needs to be able to login in to the client
machines as a service. Is this possible with a samba PDC????

thanks,
Jason