Several things need to be in place for automagic operation. The windows machine needs to have file sharing enabled and something shared. It needs to be on the same network segment as your linux box, and no firewall blocking the necessary ports. Jupiter and Mars must be in alignment.
Assuming you can get the editable address field (Ctrl-L on many file managers), you can try the direct approach: "smb://IP_ADDRESS_OF_WIN_BOX"