Control panel--Network and internet connections--Network connections
(LAN or high speed internet) left click disable

When i set up broadband on my old win98 machine a couple of years ago
the CD did all. On another machine having found XP so slow and so
clever looking for updates all the time - i just wanted to revert back
to win 98 for these two tasks. I have got win2k which might run ok.

I have an old mindmapping programme i use - eMindmaps which was
superseeded by mindmanager which was never as good.