MSDOS.SYS

MSDOS.SYS is a system file in MS-DOS and Windows 9x operating systems. In versions of MS-DOS from 1.1x through 6.22, the file comprises the MS-DOS kernel and is responsible for file access and program management. MSDOS.SYS is loaded by the DOS BIOS <a href="/wiki/IO.SYS" title="IO.SYS">IO.SYS</a> as part of the boot procedure. In some OEM versions of MS-DOS, the file is named MSDOS.COM. Some DOS utilities expect the MSDOS.SYS file to have a minimal file size of at least 1 KB. This is the reason why a large dummy comment is typically found in the MSDOS.SYS configuration file since Windows 95.

MSDOS.SYS

MSDOS.SYS is a system file in MS-DOS and Windows 9x operating systems. In versions of MS-DOS from 1.1x through 6.22, the file comprises the MS-DOS kernel and is responsible for file access and program management. MSDOS.SYS is loaded by the DOS BIOS <a href="/wiki/IO.SYS" title="IO.SYS">IO.SYS</a> as part of the boot procedure. In some OEM versions of MS-DOS, the file is named MSDOS.COM. Some DOS utilities expect the MSDOS.SYS file to have a minimal file size of at least 1 KB. This is the reason why a large dummy comment is typically found in the MSDOS.SYS configuration file since Windows 95.