Device Manger
The device manager loads device drivers and manages their resources.
Security
Taken from Microsoft - Device Manager Security:
In Windows Embedded CE 6.0, the kernel performs a full access check on first level buffer pointer parameters. This access check eliminates the need for validation to be performed by the device driver. However, a driver must still verify that the caller has access to memory addressed by embedded pointers using CeOpenCallerBuffer and CeCloseCallerBuffer. For additional information, see the Migrating a Windows Embedded CE Driver to Windows Embedded CE 6.0.