Most custom DOS 8.0 ISOs present a simple menu:

The older DOS versions have buggy RTC (real-time clock) handling. MS-DOS 8.0 has proper Y2K+ awareness, supports dates beyond 2000, and handles daylight saving time better. This is critical for industrial embedded systems still running DOS hardware.

host community-created ISOs and bootable floppy images that have been patched to restore some of the disabled functionality. Bootability

The story of is one of the more unusual chapters in computing history because, officially, it never existed as a standalone product. While most enthusiasts remember MS-DOS 6.22 as the final retail version, version 8.0 was a specialized "ghost" operating system hidden inside Windows Millennium Edition (Me) . The Hidden Version: Born of Windows Me