The directory contains a list of parameters used in system settings. The directory structure is predefined, with parameters grouped by logical categories.

The Parameter property is the system name of the parameter. Name and Alt. Name are the user-defined name and alternative name of the parameter, respectively.

There are six types of parameters: integer, "time," string, Boolean, enumerated, and "reference."

Parameters with the Exceptions flag set can have multiple values.

The selection of a parameter value for use (only for parameters with exceptions) is done using the Parameters Usage directory.