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Open SYS File

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File type: Windows System File

 

File Extension SYS

The SYS file extension is used mostly on Windows and MS-DOS platforms by SYStem files. Generally, the files with the SYS file extension contain executable codes for most hardware device drivers, such as the 1394bus.sys. The SYS files and documents execute on kernel-mode. This is the highest possible privilege for Microsoft Windows systems. This only means that errors or loopholes in the SYS files can cause great damage to the documents and in worst cases; errors may lead to data loss.

 

Open SYS File

Category: System Files
File format: Propriety
Open with Windows: May be viewed with a text editor, Should not be opened manually
Open with Linux: N/A
Two notable and widely used files with the SYS file extension are the msdos.sys and config.sys files. However, these two files are not the same as the other SYS files as these two contain configuration parameters not in executable codes but in text form.
These two SYS files are commonly used in MS-DOS with the autoexec.bat file for controlling the ways the system is boot up. However, with the modern Windows systems, these files are already considered obsolete are now only utilized for backward compatibility only.

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