The NT filesystem is used on Microsoft Windows NT and later. The fs-nt.so shared object provides read-only access to NTFS disks on a QNX Neutrino system.
The devb-* drivers automatically load fs-nt.so when mounting an NT filesystem.
If you want fs-nt.so to fabricate . and .. directory entries, specify the dots=on option. It doesn't fabricate these entries by default.