Windows 2000/XP Device Manager
The Device Manager allocates system resources for all the devices that you have in the system and makes sure that no two devices are using incompatible system resources, such as the same base address.
In Windows 2000/XP, open the Device Manager by going to StartĀ»SettingsĀ»Control Panel, double-clicking the System icon, selecting the Hardware tab, and clicking Device Manager.
If you have a Plug and Play device, the Device Manager detects the device when the system starts and automatically assigns resources for the device. For more information, refer to Plug and Play Devices in Windows 2000/XP.