Windows Internals, Fifth Edition

The Registry

The registry plays a key role in the configuration and control of Windows systems. It is the repository for both systemwide and per-user settings. Although most people think of the registry as static data stored on the hard disk, as you’ll see in this section, the registry is also a window into various in-memory structures maintained by the Windows executive and kernel.

We’ll start by providing you with an overview of the registry structure, a discussion of the data types it supports, and a brief tour of the key information Windows maintains in the registry. Then we’ll look inside the internals of the configuration manager, the executive component responsible for implementing the registry database. Among the topics we’ll cover are ...