ClassicBooster lets the user fully customize the extensions that load when running the Classic environment (MacOS 9) under OS X.
ClassicBooster can also make Classic load in under 15 seconds under typical usage.
What's new in ClassicBooster X
Version 1.1 improves the
launch time of the Classic environment as well as improving its ability to
disable unnecessary extensions. The developer has also updated the utility to be
prepared for changes in the 10.2 release of Mac OS X "Jaguar".