[Samba] help urgent

[shubha shree]

Hi,
I am using samba to share a file on my freebsd machine so that other
windows machines(windows 2000 machines,precisely) can access them.
Is there an options by which I can make this shared file non-cacheable
on the client side?(My clients are win2k machines).I mean the clients
should not be able to cache this file so that they NEED to do network
transactions to read from this shared file?

Thnaks in advance,
shubha