NTFSDOS

NTFSDOS were three kinds of programs by Winternals (later bought by Microsoft) for DOS that could handle NTFS formatted drives.^[1][2][3]

NTFSDOS

Developer(s)	Winternals
Stable release	3.02R (read-only) / June 26, 2001; 23 years ago (2001-06-26)
Operating system	DOS
Type	Utility software
License	Freeware
Website	A mirror of the original page

NTFSDOS Tools

Developer(s)	Winternals
Stable release	2.0 / 2001; 24 years ago (2001)
Operating system	DOS
Type	Utility software
License	Retail software
Website	None

NTFSDOS Professional

Developer(s)	Winternals
Stable release	4.01 / February 28, 2002; 23 years ago (2002-02-28)
Operating system	Microsoft Windows (for installation), DOS (for main utilities)
Type	Utility software
License	Demoware
Website	A mirror of the original page

Programs

Basic

The first program was NTFSDOS - a freeware utility for DOS (NTFSDOS.EXE) that allows read-only access to NTFS formatted drives from a DOS environment.^[4]

Tools

The second program was NTFSDOS Tools - an add-on package for NTFSDOS that contains two commercial utilities for DOS - NTFSCopy and NTFSRen. The former (NTFSCOPY.EXE) could be used to overwrite corrupt files with fresh versions. The latter (NTFSREN.EXE) could be used to change the names of bad drivers so Windows could not load them.

Professional

The final program was NTFSDOS Professional - a whole commercial solution for handling read and write operations in NTFS from a DOS environment. It must be installed as a package for Microsoft Windows first.

The downloaded version comes in demoware form. The user can only use the package in read-only mode in order to evaluate it.

Discontinuation

Winternals was acquired by Microsoft on July 18, 2006, which discontinued NTFSDOS.^[5]