A system file is any file that, as its name indicates, It is necessary to make this work.. They are really important and therefore they need to differentiate themselves very well from the restfor which the system file extension is used.
This is the nomenclature that we give to each of the sayings to be able to differentiate them. Their importance is such that if we move them, modify them or, obviously, delete them, our OS will work badly and may even stop working.
As you can see, we are not exactly talking about something trivial or meaningless, so knowing everything about this resource can keep our team safe. Do not hesitate, then, to take a look at this post and put it in a safe place because in it you’re going to discover not only what exactly are the extensions of but, more importantly, which areso that you can always keep an eye on them.
What is the extension of a file or system file and what is it really for?
We have already seen that the system files are those that are related to the operation of this. That means that a new computer will already include them, it is not something that we are going to download.
Furthermore, these generally they remain hidden in their corresponding folders precisely so that the inexperienced user does not access them and modify them, with its corresponding and negative consequence.
As we have already seen in other entries about extensions, these are nothing more than, at first glance, a little letters and / or little numbers (between two and four) that accompany the name of each of our files. These are placed behind a pointimmediately after the file name, without spaces.
With this alphanumeric set we are indicating that said file isprecisely, of the system and not of any other type (text, video, image, etc). Within these we find icons, libraries, device drivers, or themes.
Also, and very importantly, we also say to which class of OS it belongs each as these files are incompatible between systems; each OS has its own.
Types of system file extensions and their associated programs to open them
Although, as we have said, system files are generally hidden, it does not hurt to know very well what they are, identifying their extension or format, so that if, for whatever reason, they are exposed, we know how to recognize them. and, of course, do not modify them in any way.
So, let’s finish by looking at what, in this case, are the system file formats:
Extension Features Program
.vxd
- Virtual device driver.
- It accesses kernel memory, execution processes, and hardware.
- Its installation occurs with the operating system.
- It doesn’t need to open up; Windows makes it work
.sys
- It is a file of the operating system.
- Check that it is working correctly.
- They give shape to it, differentiating it from other versions and other OS.
- System updates modify them
.reg
- Windows registry file.
- Save information (modification, addition or subtraction of values and keys) about the installed applications.
- Registry editor on double click
- Editing with right click opens with Notepad
.ocx
- They are dynamic link libraries.
- Modules for publishing controls and functions of Windows programs.
- It requires registration in the system although this is usually automatic.
- Development platforms for Windows such as Visual Basic
- macro languages
- scripting languages
- Embedded in files with OLE support
.ini
- Startup file.
- It includes all sorts of configuration information about everything that boots with it.
- Windows system boot
- Boot for some GNU/Linux environments
.fon, .otf or .ttf
- They are font (text) files.
- They come with the system and can be downloaded to get different fonts.
- They are installed in the OS by means of a button
- font viewer
.drv
- Driver file for devices connected to the board by bus or cable.
- Define parameters of these to synchronize and communicate with the OS.
- They are dynamic link libraries, executable files loaded on command of the operating system.
- Both pre-installed and third-party software are required to run, giving them the ability to share resources.
- It has data in binary and is used by various non-text software without us realizing it.
- Some of your information is processed as text (being translated without formatting), but most of it is formatting and other functionality.
.bat
- Batch file.
- They are plain texts (MS-DOS instructions).
- The work is group, carried out sequentially to achieve an automatism.
.com
- Executable file.
- Very simple structure.
- Direct and linear storage of the memory image of each software (single segment)
- Windows, OS/2, QDOS, MS-DOS, CP/M, and PC-DOS
- Relocatable code executable file, with relative memories.
- Source code with header and segments.
- It enables the operation of a program but is not part of it.
- Native use on Windows, ReactOS, DOS and OS/2
.pnf
- OS configuration file.
- It is created by executing an INF
- It doesn’t need to open up; stored in OS directory
.386
- It is a device driver that enables communication between it and the system.
- It is a previous denomination of the current .vxd. There are (were) many others.
- It doesn’t need to open up; systems make it work
- Android apps and games.
- Android Application Package.
- Android operating system with “Unknown Sources” activation
- With APK emulators for PCs
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Do you know other extensions that you think are important? Leave them in the comments and we will add them to the list, it will surely be of great value to other readers!
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