The Registry (Registry) is a new core database that Microsoft has started with the WINDOWS95 system (which is still used by the newest Win2000 system), and introduces an entirely different kernel that replaces the INI file in the original WIN32 system and
manages the configuration of the system's operating parameters . This database integrates the initialization information of all systems and applications , including instructions for hardware devices, interrelated application and document files, window display, network connection parameters, and even network sharing settings that are related to computer security. Compared with the INI file in the old Win32 system, it has the characteristics of convenient management, high security and suitable for network operation.
in form, the registry and INI files have two notable features: 1. The registry uses binary form login data, INI file is simple text form login data
2. The registry supports sub-keywords, each level of sub-keywords have their own "key value", the INI file supports sections and the parameters in the section.
functionally, the registry and the. INI file, the following three features are mainly: 1. The registry allows tracking configuration of hardware, certain operating system parameters, applications, and device drivers, which allows changes in certain configurations to take effect immediately without restarting the system.
2. The hardware portion of the login in the registry can be used to support WIN95 Plug and Play features. When Win95 detects various devices on the machine, it saves the data to the registry. This is usually done during installation, but it is also detected when the Win95 starts or the original configuration changes. When installing a new hardware, Win95 checks the registry to determine which resources are in use, thus avoiding resource conflicts between the new device and the original device.
3. Through the registry, administrators and users can check the system configuration and settings on the network, allowing remote management to be implemented.
pre-defined keywords
the registry uses "keywords" and their "key values" to describe the login items and their data . All the keywords start with "HKEY" as a prefix. In fact, the keyword is a handle. This Convention allows application developers to use the registry API when using it in programs. To do this, WIN95 provides several API functions to add, modify, query, and delete registry entries when developing WIN95 applications. Keywords can be divided into two categories: one is system-defined, often referred to as "predefined keywords", and the other is application-defined, the application software installed, and its login entries are different.
Because the registry holds information that contains many of the necessary parameters when the system starts, the problem will result in serious consequences such as a system crash, and because the registry contains many system parameters that cannot be manipulated by the operating system itself, it is essential for every veteran to learn and learn to use the registry.
What is the role of the Registry and the registry
