|File Type||Windows System File|
|File Format||Standard (developed by Microsoft)|
|Usage||Referenced by an application; not meant to be opened manually|
|Popularity||★ ★ ★ ★ ★ Popular|
Stores system settings and variables used by the DOS and Windows operating systems; also contains functions that are used to run the operating system; SYS files typically should not be edited.
IO.SYS is used by DOS and Windows 9x; it contains the default DOS device drivers, the DOS initialization program and processes MSDOS.SYS and CONFIG.SYS files.
MSDOS.SYS contains the core operating system code for DOS, known as the DOS kernel; CONFIG.SYS is the primary configuration file used for the DOS operating system.
|Published||May 19, 2008|