Author Jim Heid of Avondale Media has posted a great tip on keeping iTunes 4.0 Internet sharing capabilities with the recent release of 4.0.1.
“Anyone who listens to AAC audio will want to upgrade to iTunes 4.0.1, since it fixes a playback problem that existed in version 4.0.
But you may have become fond of iTunes 4’s Internet sharing features, which, as I wrote yesterday, are no more.
The solution? Keep both versions—they’ll coexist on your hard drive.
Before installing version 4.0.1, simply drag the iTunes application icon out of the Applications folder and into a different folder. Then install the 4.0.1 update.
When you want Internet sharing, simply launch version 4.0.”
Note: Jim also has some good info on what’s new in 4.0.1 and how it handles sharing.