ISN File

What are ISN files and how to open them

Are you having problems opening an ISN file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your ISN files.

What is an ISN file?

Files that contain the .isn file extension are most commonly associated with installer source files. These files contain listings of the files that are used by the Installshield utility when the utility is installing software applications on a user's computer.

When a user starts to install an application using Installshield, the Installshield utility will use the ISN file to complete the application process, referencing the file to find out where and how to install the application that is associated with it. Without the necessary ISN file, an application will not be able to install properly on a user's hard drive.

How to open ISN files

Important: Different programs may use files with the ISN file extension for different purposes, so unless you are sure which format your ISN file is, you may need to try a few different programs.

While we have not verified the app ourselves yet, our users have suggested a single ISN opener which you will find listed below.

Last updated: September 29, 2012

Various apps that use files with this extension

These apps are known to open certain types of ISN files. Remember, different programs may use ISN files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about ISN file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.