You can use some Mac OS 9.1 control panels in the Mac OS X Classic environment to make and change system settings. However, not all Mac OS 9.1 control panels work in the Classic environment. Some control panels may have limited capabilities, and others may be turned off. In these cases, the Mac OS X System Preferences application replaces these control panels and their functions. Below is a list of control panels and a description of their functions in the Mac OS X Classic environment.
Appearance control panel
AppleTalk control panel
You can adjust AppleTalk settings for the Classic environment. Settings made in this control panel do not change those made in the Mac OS X Network pane of System Preferences. AppleTalk settings for Mac OS X and the Classic environment can be configured independently.
Control Strip control panel
The Mac OS 9 Control Strip is disabled in Classic. Use Mac OS X System Preferences instead. Mac OS X includes Dock extras that you can use to change certain settings from the Dock, such as monitor resolution and color depth. You will find these in the Applications folder on your Mac OS X disk. To use a Dock extra, drag it to the Dock, and click its icon to choose a command from the pop-up menu. Dock extras can also indicate the status of certain items, such as the computer's battery level.
Date & Time control panel
This control panel can be used to set the date and time notation used in Classic applications, and to adjust the menu bar clock's appearance and hourly chime within the Classic environment only. Use the Date & Time pane in Mac OS X System Preferences to set the computer's date and time.
Energy Saver control panel
Use the Energy Saver pane instead.
Extensions Manager control panel
With Mac OS 9.1 as the Classic System Folder, this control panel allows Mac OS 9.1 system software components to be turned on and off as expected, though turning off certain components causes the Classic environment to work incorrectly. For related information, see article 106249: "Mac OS X 10.0: Unexpected Classic Behavior When Using Mac OS 9.1 All or Base Extension Sets".
File Sharing control panel
Volumes and folders cannot be selected for sharing. Guest and other user access may not work as expected. File sharing over TCP/IP (which is required for Mac OS X peer-to-peer networking) cannot be enabled. Instead, use the Sharing pane of Mac OS X System Preferences to share a Public folder, or enable FTP access and remote login.
General Controls control panel
Options that affect only the Classic environment are available; those which do not are dimmed.
Infrared control panel
This control panel does not work in the Classic environment.
Keyboard control panel
Use the Keyboard pane in Mac OS X System Preferences to set the Key Repeat Rate and the Delay Until Repeat. For information on the other settings available in the Mac OS 9 Keyboard control panel, please see article 106268: "Mac OS X 10.0: Using the Keyboard Control Panel in Classic"
Location Manager
This control panel does not work in the Classic environment.
Memory control panel
With Mac OS X 10.0, this can be used to adjust only the Disk Cache setting. You should not typically need to adjust this, but may set it to the minimum setting to conserve available memory. Note: If you start up the computer using the Mac OS 9.1 System Folder, you should reset the Disk Cache to its default setting.
Modem control panel
Use the Network pane instead. To change modem settings, choose the modem from the Configure pop-up menu in the Network pane, then click the Modem tab.
Monitors control panel
Use the Mac OS X Displays pane instead when possible. Certain Classic applications may require that you set the color depth to 256 colors, or the resolution to 640-by 480-pixels. In this case, you can use the Mac OS 9 Monitors control panel.
Mouse control panel
Use the Mouse pane instead.
Multiple Users control panel
Use the Users pane instead.
Password Security control panel
This control panel does not work in the Classic environment. To require a password, open the Login pane, click the Login tab, and deselect "Automatically log in".
PowerBook SCSI Disk Mode control panel
The PowerBook SCSI Disk Mode control panel does not work with the Mac OS X Classic environment.
Remote Access control panel
Remote Access does not work in the Classic environment. Instead, use the Internet Connect application and the PPP tab of the Network pane.
Software Update control panel
The Software Update control panel does not work in the Classic environment. For more information, please see article 106276: "Mac OS X 10.0: Classic Does Not Allow Use of Software Update"
Sound control panel
The Sound control panel in Classic can be used to choose the alert sound and alert volume for Classic and to change the master volume and mute settings for the underlying Mac OS X audio system. In Mac OS X 10.1, changes made to the master volume and mute settings through Classic will be effective across all of Mac OS X, but beware that the Sound pane of System Preferences will not update its display to reflect changes made by Classic. The Sound control panel in Classic will update its display to reflect changes made by the Sound pane of System Preferences or any other client of the Mac OS X audio system.
Startup Disk control panel
Use the Startup Disk pane instead.
TCP/IP control panel
Use the Network pane instead. Adjustments made with the Mac OS 9 TCP/IP control panel do not take effect.
Trackpad control panel
Use the Mouse pane instead.
Web Sharing control panel
Use the Sharing pane instead.