Opening ISU Files

The ISU file type is primarily associated with InstallShield.

ISU	File extension: ISU
	File type:	uninstall script

What is an ISU file?

ISU files mostly belong to InstallShield by Acresso. An ISU file is a script that Windows Installer executes in order to uninstall a program and its packages from a computer. This file is created by InstallShield installer package development software. The ISU script is saved alongside other program information and is only executed when Windows installer attempts to remove a program from a computer.

How to open ISU files

You need a suitable software like InstallShield to open an ISU file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ISU file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ISU file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ISU Text Viewer

Choose your .isu file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert ISU files:

InstallShield by Acresso
See the previous paragraphs to learn more about the main application. ISU files are often referred to as InstallShield executables because this type of file is primarily created or used by this software.
Easy CD Creator 4 (uninstall script) by Roxio
Easy CD Creator is a discontinued disc authoring and burning software for Windows desktop. Its uninstall script is saved in an ISU file. This file format is classified as Executable.
Netscape Navigator (data) by AOL
Netscape Navigator is a discontinued Internet browser for Windows operating system. It uses some data saved in a file with ISU filename extension. This file format is classified as Data.

ISU format details:

A file format defines how the data in the file is structured. The file format can be deduced from the file extension and the signature. File extension, signature and file format must match; otherwise errors will occur when the file is opened. When there is a problem with a file, the first step to solving it is to determine the file format. Our evaluation of the ISU files looks like this:

As a file extension, ISU isn't very common and predominantly uses a uniform format. The following file formats are most commonly found in ISU files:

99% of all ISU files are InstallShield Uninstall Script files. These files are binary files, so they do not contain text, but only cryptic characters. ISU files are between 3 KB and 340 KB in size. The file type is very old but is also used today. The keywords Stirling Technologies, Inc. (c) 1990-1995 are typical for these files. An example of a file name is Uninst.isu or DeIsL1.isu.

The remaining 1% of all ISU files are files with no common format. If you want to find out which format your ISU file belongs to, just click on the button "Choose your .isu file to analyze".

Technical Data for ISU File Extension

File classification:

Executable

Related files:

lsu, isr, exe, dll, iso, zip, ins, rul, iss

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: Install.shield.uninstall
EXEFile: %SystemRoot%\uninst.exe -f%1

an isu uninstall script is a special file format by Acresso and should only be edited and saved with the appropriate software.

How to solve problems with ISU files

Associate the ISU file extension with the correct application.
Update your software that should actually open uninstall scripts. Because only the current version supports the latest ISU file format. Search, therefore, e.g. on the Acresso manufacturer website after an available InstallShield update.
To make sure that your ISU file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ISU file online - secure, fast, and no downloads needed.