The company

Winternals Windows Sysinternals is a website that offers technical resources and utilities to manage, diagnose, troubleshoot, and monitor a Microsoft Windows environment. Originally, the Sysinternals website (formerly known as ntinternals) was created in 1 ...

(later purchased by

Microsoft Microsoft Corporation is an American multinational corporation, multinational technology company, technology corporation producing Software, computer software, consumer electronics, personal computers, and related services headquartered at th ...

) used to provide three kinds of programs for DOS that could handle

NTFS New Technology File System (NTFS) is a proprietary journaling file system developed by Microsoft. Starting with Windows NT 3.1, it is the default file system of the Windows NT family. It superseded File Allocation Table (FAT) as the preferred f ...

formatted drives.

The NTFSDOS programs

NTFSDOS

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.

NTFSDOS 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 wouldn't load them.

NTFSDOS 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 Shareware is a type of proprietary software that is initially shared by the owner for trial use at little or no cost. Often the software has limited functionality or incomplete documentation until the user sends payment to the software developer ...

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

Commercial NTFSDOS packages become abandonware

Winternals was acquired by Microsoft on July 18, 2006. Microsoft has removed any traces of NTFSDOS, NTFSDOS Tools and NTFSDOS Professional from the new internal site of Microsoft's Winternals' utilities.

References

DOS software {{DOS-stub