Apple PC Compatibility Card - Manual (Page 199)

Starting the PC automatically
You can set the PC to start automatically when you start your computer, and
you can set your computer to switch to the PC environment automatically
after startup. To do this, you use the PC Setup control panel.
m To start the PC automatically whenever you start up the Mac OS
environment, click the box next to “Auto-start PC” to place an X in it.
m To automatically switch to the PC environment whenever you start up
the Mac OS environment, click the box next to “Switch at Startup” to
place an X in it.
WARNING If you want to switch to the PC whenever you start up, make
sure that the Shut Down Warning option is turned off in the Mac OS
General Controls panel. If the warning is on, you may not be able to
switch back to the Mac OS environment for a few minutes after
switching to the PC.
199 Working in the PC Environment