File extension NSI
| File type | Symantec Shared Format |
| Developer | Nullsoft |
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What is a NSI file?
The NSI extension has files that are created using a scripted installer called Nullsoft Scriptable Install System. The NSI file is a script prepared with this tool, which allows you to run and carry out the installation process of the package prepared in Nullsoft.
Install System is a tool for managing and preparing installation versions of applications and is an alternative to the InstallShield tool. Packages prepared in this way allow you to install programs in a few simple steps.
Program(s) that can open the .NSI file
How to open NSI files
If you cannot open the NSI file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports NSI among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the NSI file can be found in the table. Now just download and install the appropriate application.
Possible problems with the NSI format files
The inability to open and operate the NSI file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the Symantec Shared Format file. Below is a list of possible problems.
- Corruption of a NSI file which is being opened
- Incorrect links to the NSI file in registry entries.
- Accidental deletion of the description of the NSI from the Windows registry
- Incomplete installation of an application that supports the NSI format
- The NSI file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the NSI file.
- Drivers of equipment used by the computer to open a NSI file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the NSI file should operate with your programs without any problem. If the problem with the NSI file has not been solved, it may be due to the fact that in this case there is also another rare problem with the NSI file. In this case, the only you can do is to ask for assistance of a professional staff.
Updated 02/15/2022
Similar extensions
| .a | Unix Static Object Code Library Format |
| .a2w | Alice Program World Format |
| .actx | DS Game Maker Action Description Format |
| .ada | ADA Language Source Code Format |
| .addin | Microsoft Visual Studio Addin Format |
| .ads | Ada Package Specification |
| .agi | Asterisk Gateway Interface Format |
| .alb | Alpha Five Data Dictionary |
How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.NSI) you have two ways to do it. The first and the easiest one is to right-click on the selected NSI file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the NSI file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. NSI) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.