Provides an easy method for turning extensions, control panels and startup programs on and off. However, you only get to see limited Extensions and control panels, you may notice there are more extensions when you open the Extensions folder. You must restart your Mac for changes to take effect. Extension Manager, version MacOS 8, also provides detailed information about most extensions and control panels. If you have EM Extension installed, you can launch this control panel by holding down the space key during computer startup.
