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Open SYS File Extension in Windows

System file definition and 2 other types and linked programs information to open, edit and convert.

 

How to Open SYS File

File extension sys is used by following type(s):

Default file extension for .sys file type:
System file
It is commonly used for system files under Windows platforms. Usually these files contain code for hardware device drivers and files required for operating system itself. Errors in these system files can cause operating system malfunction or data loss.
Programs
that open sys files in windows:
DR-DOS (MS-DOS)
Microsoft Windows (Microsoft Windows)
MS-DOS (MS-DOS)

 

System configuration
It is used for system configuration file (config.sys in MS-DOS, Win95/98/ME)
Programs
that open sys files:
Microsoft Windows (Microsoft Windows)
MS-DOS (MS-DOS)