Firstly - EVen the windows firewall will create problems. If you are behind a router then there will be no problems with turning them both of.
You do need to be on the same workgroup, Basicaly you need to right click on the laptop printer and select sharing. Depending on the windows version you have you may need to log onto both computers with the same username and password of at least have a valid account in the user accounts list.
See if this is of help to you -
http://www.cableforum.co.uk/board/sh...ad.php?t=16565
HTH