NSH file icon

NSH File Extension

NSIS Header Format

What is NSH file?

Full format name of files that use NSH extension is NSIS Header Format. Nullsoft defined the NSIS Header Format format standard. NSH file format is compatible with software that can be installed on Windows system platform. NSH file format, along with 1205 other file formats, belongs to the Developer Files category. The most popular program for handling NSH files is NSIS, but users can choose among 2 different programs that support this file format.

Programs which support NSH file extension

Below is a table that list programs that support NSH files. Files with NSH suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

Programs that support NSH file

How to open file with NSH extension?

There can be multiple causes why you have problems with opening NSH files on given system. What is important, all common issues related to files with NSH extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. We have prepared a listing of which will help you resolve your problems with NSH files.

Step 1. Download and install NSIS

Install software to open NSH file The most common reason for such problems is the lack of proper applications that supports NSH files installed on the system. The most obvious solution is to download and install NSIS or one to the listed programs: Text editor, Eclipse. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. The safest method of downloading NSIS installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Update NSIS to the latest version

Update software that support file extension NSHYou still cannot access NSH files although NSIS is installed on your system? Make sure that the software is up to date. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. If you have an older version of NSIS installed, it may not support NSH format. The latest version of NSIS should support all file formats that where compatible with older versions of the software.

Step 3. Assign NSIS to NSH files

If the issue has not been solved in the previous step, you should associate NSH files with latest version of NSIS you have installed on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Associate software with NSH file on Windows

The procedure to change the default program in Windows

  • Right-click the NSH file and choose Open with option
  • Click Choose another app and then select More apps option
  • The last step is to select Look for another app on this PC option supply the directory path to the folder where NSIS is installed. Now all that is left is to confirm your choice by selecting Always use this app to open NSH files and clicking OK.
Associate software with NSH file on Mac

The procedure to change the default program in Mac OS

  • By clicking right mouse button on the selected NSH file open the file menu and choose Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • Select the appropriate software and save your settings by clicking Change all
  • If you followed the previous steps a message should appear: This change will be applied to all files with NSH extension. Next, click the Continue button to finalize the process.

Step 4. Check the NSH for errors

Should the problem still occur after following steps 1-3, check if the NSH file is valid. Problems with opening the file may arise due to various reasons.

Check NSH file for viruses
1. Verify that the NSH in question is not infected with a computer virus

If the NSH is indeed infected, it is possible that the malware is blocking it from opening. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. NSH file is infected with malware? Follow the steps suggested by your antivirus software.

2. Verify that the NSH file’s structure is intact

Did you receive the NSH file in question from a different person? Ask him/her to send it one more time. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. It could happen the the download process of file with NSH extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Check whether your system can handle NSIS

If the system is under havy load, it may not be able to handle the program that you use to open files with NSH extension. In this case close the other applications.

5. Verify that your operating system and drivers are up to date

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with NSIS Header Format file. It may be the case that the NSH files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the NSH file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on NSH file.

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