MSDOS.SYS an important system file on
MS-DOSMS-DOS is an operating system developed by Microsoft. It was the most commonly used member of the DOS family of operating systems and was the main operating system for personal computers during the 1980s. It was preceded by M-DOS , designed and copyrighted by Microsoft in 1979...
and
Windows 9xWindows 9x is the family of Microsoft Windows operating systems that comprises the hybrid 16/32-bit Windows versions: Windows 95, Windows 98, which were produced in the 1990s, and often also Windows Me, which was produced in 2000...
systems. It is run after
IO.SYSIO.SYS is an essential part of MS-DOS and Windows 9x. It contains the default MS-DOS device drivers and the DOS initialization program....
. In MS-DOS, it contains the core operating system code, the kernel. On Windows 9x systems the DOS kernel code is merged into IO.SYS and MSDOS.SYS is an
ASCIIThe American Standard Code for Information Interchange is a character-encoding scheme based on the ordering of the English alphabet. ASCII codes represent text in computers, communications equipment, and other devices that use text...
file containing configuration directives.
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MSDOS.SYS an important system file on
MS-DOSMS-DOS is an operating system developed by Microsoft. It was the most commonly used member of the DOS family of operating systems and was the main operating system for personal computers during the 1980s. It was preceded by M-DOS , designed and copyrighted by Microsoft in 1979...
and
Windows 9xWindows 9x is the family of Microsoft Windows operating systems that comprises the hybrid 16/32-bit Windows versions: Windows 95, Windows 98, which were produced in the 1990s, and often also Windows Me, which was produced in 2000...
systems. It is run after
IO.SYSIO.SYS is an essential part of MS-DOS and Windows 9x. It contains the default MS-DOS device drivers and the DOS initialization program....
. In MS-DOS, it contains the core operating system code, the kernel. On Windows 9x systems the DOS kernel code is merged into IO.SYS and MSDOS.SYS is an
ASCIIThe American Standard Code for Information Interchange is a character-encoding scheme based on the ordering of the English alphabet. ASCII codes represent text in computers, communications equipment, and other devices that use text...
file containing configuration directives.
By default the file is located in the
root directoryIn computer file systems, the root directory is the first or top-most directory in a hierarchy. It can be likened to the root of a tree - the starting point where all branches originate.-Metaphor:...
of the bootable drive/partition (normally C:\) and has the hidden, read-only and system
file attributesattrib is a command, in MS-DOS, OS/2 and Microsoft Windows. The function of attrib is to set and remove file attributes...
set.
DR-DOSDR-DOS is a DOS-type operating system for IBM PC-compatible personal computers, originally developed by Gary Kildall's Digital Research and derived from CP/M-86.-Origins in CP/M:...
and
PC-DOSIBM PC DOS is a Proprietary DOS system for the IBM Personal Computer and compatibles, manufactured and sold by IBM from the 1980s to the 2000s.-Naming:Official product name of "PC DOS" are as below:...
systems used the file IBMDOS.COM for the same purpose.
Windows NTWindows NT is a family of operating systems produced by Microsoft, the first version of which was released in July 1993. It was originally designed to be a powerful high-level-language-based, processor-independent, multiprocessing, multiuser operating system with features comparable to Unix. It was...
-based operating systems (NT 3.1-4, 2000, XP, 2003, Vista, 2008 and 7) use the
NTLDRNTLDR is the boot loader for all releases of Microsoft's Windows NT operating system up to and including Windows XP and Windows Server 2003. NTLDR is typically run from the primary hard disk drive, but it can also run from portable storage devices such as a CD-ROM, USB flash drive, or floppy disk...
file instead, as they have a different boot sequence.
External links
MSDOS.SYS in Windows 9x (95/98/ME):