Many install Zone Alarm and that has NO DISABLE and may interfere. The next issue is the new SP2 firewall which you have to allow the printer or file sharing you are trying to do.
And then you must share "something".
I have dsl. I am using a wireless router to share the internet between a desktop and a laptop. Both computers have windows xp sp2. There is no problem in sharing internet but I could not share files/printers between the two computers. I tried 'network setup wizard' to share files and it never worked. The two computers did not show up in the 'work group'.
I would appreciate any help on this issue. Thanks in advance.