The CreateFolder table contains references to folders that need to be created explicitly for a particular component.
The CreateFolder table has the following columns.
External key into the first column of the Directory table.
External key into the first column of the Component table.
The folders in this table are created when the component is installed. An attempt is made to remove these folders only when the component is uninstalled or moved to run-from-source. No automatic removal is triggered if the folders become empty. In contrast, folders created by the installer but not listed in this table are removed when they become empty.
Because folders created by the installer are deleted when they become empty, you must author an entry into the CreateFolder table to install a component that consists of an empty folder.