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Windows Reg data types

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Below lists the data types currently defined and used by the Windows Reg.


REG_SZ: A fixed-length text string.


REG_FULL_RESOURCE_DESCRIPTOR: A series of nested arrays designed to store a resource list for a hardware component or driver.


REG_EXPAND_SZ: A variable-length data string. This data type includes variables that are resolved when a program or service uses the data.


REG_DWORD: Data represented by a number that is 4 bytes long. Many parameters for device drivers and services are this type and are displayed in Registry Editor in binary, hexadecimal, or decimal format.


REG_BINARY: Raw binary data. Most hardware component information is stored as binary data and is displayed in Registry Editor in hexadecimal format.



REG_MULTI_SZ: A multiple string. Values that contain lists or multiple values in a form that people can read are usually this type. Entries are separated by spaces, commas, or other marks.

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