RegistryKey Represents a key-level node in the Windows registry. This class is a registry encapsulation.

 RegistryHive Represents the possible values for a top-level node on a foreign machine.

 RegistryKeyPermissionCheck Specifies whether security checks are performed when opening registry keys and accessing their name/value pairs.

 RegistryOptions Specifies options to use when creating a registry key.

 RegistryValueKind Specifies the data types to use when storing values in the registry, or identifies the data type of a value in the registry.

 RegistryValueOptions Specifies optional behavior when retrieving name/value pairs from a registry key.

 RegistryView Specifies which registry view to target on a 64-bit operating system.

 Registry Provides objects that represent the root keys in the Windows registry, and methods to access key/value pairs.