Stop File Sharing on a Wireless Network?

Archived from groups: microsoft.public.windowsxp.security_admin (More info?)

Hi

I have recently set up a wireless internet netowrk between me and my flat
mates. Using a Ethernet connection to my ADSL Modem/Router. I am wondering
whether this emans that they can access the files stored on my computer, and
if so How can I prevent this. Or make sure that they can't do this and
prevent this too.

As I am not sure If I have set up File Print Sharing on my PC.

Many Thanks