Registry

The Registry contains every conceivable setting in the OS. These settings are divided into several groups called hives. Table 3-2 lists the hives and describes their content.

Table 3-2. Registry Hives

Registry Hive	What It Contains
HKEY_CLASSES_ROOT	File extension mapping
HKEY_CURRENT_CONFIG	All devices in current use
HKEY_CURRENT_USER	User environment
HKEY_LOCAL_MACHINE	All devices regardless of current usage
HKEY_USERS	Settings that affect all users