Windows 9x/Me Registry

If you use Windows 9x/Me at the office and at home, you probably notice a lot of differences between the systems, such as screen resolution and color depth settings, installed programs, and so forth.

The primary files used to keep track of the system configuration are

  • System.dat — Stores computer-specific configuration information

  • User.dat — Stores user-specific configuration information

Windows Me adds a third configuration file:

  • Classes.dat— Stores file types and association information (stored in System.dat in Windows 9x)

Collectively, these files form the Windows Registry, the central location where almost everything that's important about how Windows 9x/Me works, as well as the programs and hardware installed for ...

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