Control Panel applications configure and review system-wide settings, such as sound schemes, clock forms, passwords, and regional settings. A user can change settings when the system starts and during normal operation. You can use settings from the Control Panel applications that are part of Microsoft® Windows® CE for the Auto PC or write additional Control Panel applications to meet the application needs.
When a Control Panel application starts, it searches the Windows directory for any files with a .cpl extension. The Control Panel displays all applications with .cpl extensions. If the Control Panel fails to load a particular .cpl file, this file is skipped and the remaining applications are loaded. If an application has been updated during run time, Control Panel detects this and loads the updated application.
The following table shows Control Panel applications included with Windows CE for the Auto PC.
Application |
File name |
Description |
| About Auto PC | Aboutapc.cpl | Provides information that includes the system copyright, memory information, battery power status, and system information, such as, processor type. It also informs the user of installed PC cards and what the respective software version number. |
| Backup and Restore | Backrest.cpl | Initiates a file system backup or restore operation. It is a password-protected application. If a password is set, password validation forms appear when the application starts. Backup and Restore is the only way for a user to back up volatile data in RAM. |
| Clock | Clock.cpl | Enables users to set clock display options such as current date, time, time zone, and daylight savings time |
| Display | Display.cpl | Toggles the backlight between bright and dim |
| Password | Password.cpl | Enables a user to set or clear a password for access to information on an Auto PC |
| Regional Setup | Regset.cpl | Enables the user to specify regional settings |
| Remove Program | Uninstal.cpl | Removes an application from RAM |
| Sounds | Sounds.cpl | Enables the user to customize audio output |
| Speech Commands | Speechcmd.cpl | Enables a user to select options for speech recognition and TTS |
| Timeout | Timeouts.cpl | Enables a user to set timers |
Your application can alter or access data from some of these Control Panel applications. For example, you can install a custom clock form, access settings in regional setup, or install a new sound scheme.