Registry data type

The keys in the Registry contain data of different formats. Data types can be classified as follows:

Common Data Types: RegEdit, RegEdt32, and other data types that are supported and editable by most registry tools.

Windows NT dedicated data type-supported by RegEdt32 and several other registry tools, and data types that can be edited.

Special Data Types dedicated to components/applications-Registry tools support these data types, but they are limited for programs.
Users can only edit the binary number.

In fact, the Registry tool can also edit unsupported data types, including those displayed as REG_UNKNOWN. However, editing can only be performed in binary mode, which requires you to have a good understanding of the Data Object format.

 

Type	Type Index	Big and small	Description
REG_BINARY	3	0 ~ Multiple bytes	Color Description of binary objects that can contain any data
REG_COLOR_RGB	*	4 bytes	Color Description
REG_DWORD	4	4 bytes	DWORD Value
REG_DWORD_BIG_ENDIAN	5	4 bytes	Storage Format of a dword Value in reverse order
REG_DWORD_LITTLE_ENDIAN	4	4 bytes	DWORD Value
REG_EXPAND_SZ	2	0 ~ Multiple bytes	String containing the placeholder Environment Variables
REG_FILE_NAME	*	0 ~ Multiple bytes	File Name
REG_FILE_TIME	*	Unknown	File time
REG_FULL_RESOURCE_DESCRIPTOR	9	Unknown	Hardware resource list
REG_LINK	6	0 ~ Multiple bytes	Name the Unicode string of a symbolic link.
REG_MULTI_SZ	7	0 ~ Multiple bytes	String set separated by null characters. The last string in the set ends with two null characters.
REG_NONE	0	Unknown	REG_NONE objects do not need to be classified. They are different from REG_UNKNOWN objects.
REG_RESOURCE_LIST	8	Unknown	List of resources used by devices
REG_RESOURCE_REQUIREMENTS _ LIST	10	Unknown	List of resources required by the driver
REG_SZ	1	0 ~ Multiple bytes	String with a null Character Line
REG_UNKNOWN	Undefined)	Unknown	The object type cannot be determined because the data type index is invalid.