In QNX 6.4.1 there is read-only support of NTFS filesystem but I cannot mount NTFS. fdisk shows me NFST partition with 
type 7 and there is /dev/hd0t7.

mount -t nt /dev/hd0t7 /mynt
mount: Can't mount /mynt (type nt)
mount: Possible reason: Can't access shared library

Though I list (ls) fs-nt.so into /lib/dll with common permissions like fs-qnx6.so and others.

PS. diskboot doen't mount NTFS automatically as declared. It seems the same thing.