bit outdated in that the gksu command in the shortcut needs amending, but a very simple tool for creating smb shares that other can see. don’t forget to create users as well as define the windows shares. You need to:

sudo touch /etc/libuser.conf

.The gui shortcut can be made to work if you fiddle around and sort out gksu, but hardly worth the bother. Simply:

sudo system-config-samba