The support is so far enabled only for INI files (freeldr.ini, boot.ini).
May be subject to further improvements in the future.
Usage examples:
- When finding existing ReactOS or Windows installations, the boot store
should exist and is opened in read-only mode. Closing the boot store
doesn't store any temporary modifications made to it.
- When doing a clean installation, freeldr.ini is created in read-write
access.
- When installing with an existing freeldr.ini or boot.ini, they are
opened as existing files in read-write access.