HKEY_CURRENT_CONFIG

HKCC, a new root key in NT 4.0, is a link to HKLM\SYSTEM\CurrentControlSet\Hardware Profiles\Current, which contains the configuration data for the hardware profile in use on the system. Microsoft added HKCC to NT to let applications that access this key run on both Windows 95 and NT. To create, configure, and change hardware profiles, you can use Control Panel's System, Services, and Device applets.