Directory table contains all the directories in an msi file. A directory can have a parent and child directories. If the parent or child directory of any directory is to be modified it can be done through this table. This table also lists all the parent directories of each directory. The Directory table has the following columns:

Directory:

Directory column contains a unique identifier for a directory.

Directory_Parent:

Directory_Parent column is a reference to the directory's parent directory. Directory that has a Directory_Parent column equal to null or equal to the Directory column represents a root directory.

DefaultDir:

This column references to the name of both the target and source directories.