File Extension SYS

.SYS File

File extension: SYS
File type: Syatem File


Notes about the SYS file extension:



To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The SYS file type is primarily associated with 'PDP-10'. The PDP-10 was a mainframe computer manufactured by Digital Equipment Corporation (DEC) from the late 1960s; the name stands for Programmed Data Processor model 10. The PDP-10 was eventually eclipsed by the VAX supermini machines. The PDP-10 product line cancellation was announced in 1983.

Detailed information for file extension SYS:


Primary association: PDP-10
Related links: Wikipedia PDP-10 Page

Other applications associated with file type SYS:

  • PlayStation 2 (Icon) by Sony Corporation of America The identifying characters used for this association are - Hex: 50 53 32 44 , ASCII: PS2D
  • SYGRAPH/SYSTAT/SPSS/PC (Data File)
  • System Configuration
  • System Device DriverNote: This file type can become infected and should be carefully scanned if someone sends you a file with this extension.
  • Unknown Apple II File ((found on Golden Orchard Apple II CD Rom))
File Identifier - TrID
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database




To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

Technical data

To view technical data on file-extension SYS click this link to expand/hide the additional area.

System Info for File Extension .SYS

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: GraphicsConverterPro.sys, FileType: Windows Bitmap, AppName: GraphicsConverter-reg
EXEFile: GraphicsConverter.exe

ProgramID: sysfile, FileType: System file, AppName: Dependency Walker for Win32 (Intel x86)

ProgramID: sysfile, FileType: System file, AppName: Dependency Walker for Win32 (x86)
EXEFile: DEPENDS.EXE

ProgramID: sysfile
EXEFile: %SystemRoot%\SYSTEM32\NOTEPAD.EXE %1

ProgramID: sysfile
EXEFile: %ProgramFiles%\Restorator 2004\Restorator.exe %1

ProgramID: sysfile
EXEFile: C:\I386\SYSTEM32\SMSS.EXE %1

ProgramID: 3Com.Image Editor
EXEFile: %ProgramFiles%\MBAUTIL\IMGEDIT\IMGEDIT.EXE


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