What is the schema?
The schema is a blueprint of all the objects in a domain. When you create a
new forest, a default schema contains definitions for users, computers, and
domains. Because you canít have multiple definitions of an object, you can
have only one schema per domain.
The file schema.ini contains the default schemaís definition, as well as
the initial structure for the file ntds.dit (which stores directory data). The
%systemroot%\ntds directory contains the file schema.ini. The file is in plain
ASCII format so that you can type it.
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