Win32: Access to network resources w/o user login

[utabintarbo]

Is there a way to (programmatically) access network resources from a
WinXP client without a user being logged in? I guess I need to know
where the fstab file is in Windows. :-P

Some more background: I am trying to access a samba share which is set
up for anonymous login (all unknown users are mapped to a known user)
with a process I hope to turn into a service (as soon as I figure
*that* out as well :-P).

Any help is *greatly* appreciated!