NTFS 5 was launched along with Windows 2000. It has many more added features like Active Directory Support. It supports all the features of NTFS 4 along with support for encryption of data at volume, directory or file level.
Some of the new features of NTFS 5 are:
File/directory encryption.
Per-user, per-volume disk quotas.
Hierarchical Storage Management (reparse points).
Mount points.
Distributed link tracking support.
Sparse-file support.
Volume change tracking.
Encryption.
