MS-DOS 7 is a real mode operating system for IBM PC compatibles.

Unlike earlier versions of MS-DOS, it was not released separately by Microsoft,[3] but included in the Windows 9x family of operating systems.

[7] Continuing what Computerworld called a "vaporware tornado", Microsoft also projected this revised combination of Windows and MS-DOS to require a low-end computer with only 4 MB of RAM.

[citation needed] MS-DOS 7.0 adds support for long filename (LFN) using the VFAT file system,[10] whereas earlier versions do not show long filenames even with a driver such as DOSLFN.

[13] Logical block addressing (LBA) is supported in MS-DOS 7 for accessing larger hard disks, unlike earlier versions which only supported cylinder-head-sector (CHS)-based addressing.

In the case of Windows 95 RTM, the version number 7.0 is displayed in place of 7.1.

[15] A major difference from earlier versions of MS-DOS is the usage of the MSDOS.SYS file.