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Registry is a database used to store settings and options
for the 32 bit versions of Microsoft Windows including Windows
95, 98, ME and NT/2000. It contains information and settings
for all the hardware, software, users, and preferences of
the PC. Whenever a user makes changes to a Control Panel settings,
or File Associations, System Policies, or installed software,
the changes are reflected and stored in the Registry.
The
physical files that make up the registry are stored differently
depending on your version of Windows; under Windows 95 &
98 it is contained in two hidden files in your Windows directory,
called USER.DAT and SYSTEM.DAT, for Windows Me there is
an additional CLASSES.DAT file, while under Windows NT/2000
the files are contained seperately in the %SystemRoot%\System32\Config
directory. You can not edit these files directly, you must
use a tool commonly known as a "Registry Editor"
to make any changes.
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