The registry data type of the value associated with name.
A registry key can have one value that is not associated with any name. When this unnamed value is displayed in the registry editor, the string "(Default)" appears instead of a name. To retrieve the registry data type of this unnamed value, specify either null or the empty string ("") for name.
For a description of supported registry data types, please see the Microsoft.Win32.RegistryValueKind enumeration.