File extension ISU
| File type | InstallShield Uninstall Script Format |
| Developer | Flexera Software |
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What is a ISU file?
ISU is the extension given to the files associated with the installation package management tool InstallShield. ISU is a file included with installation packages that allows you to properly uninstall the application from the system. It is a file in the form of an uninstall script.
ISU files allow for the thorough deletion of all data used by the installed application without the need to search and delete them manually. Additionally, some installation packages make entries in the system registry that should not be removed by the user.
Program(s) that can open the .ISU file
Windows
How to open ISU files
If you cannot open the ISU 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 ISU 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 ISU file can be found in the table. Now just download and install the appropriate application.
Possible problems with the ISU format files
The inability to open and operate the ISU 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 InstallShield Uninstall Script Format file. Below is a list of possible problems.
- Corruption of a ISU file which is being opened
- Incorrect links to the ISU file in registry entries.
- Accidental deletion of the description of the ISU from the Windows registry
- Incomplete installation of an application that supports the ISU format
- The ISU 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 ISU file.
- Drivers of equipment used by the computer to open a ISU file are out of date.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 ISU file should operate with your programs without any problem. If the problem with the ISU file has not been solved, it may be due to the fact that in this case there is also another rare problem with the ISU file. In this case, the only you can do is to ask for assistance of a professional staff.
Updated 05/29/2022
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How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.ISU) you have two ways to do it. The first and the easiest one is to right-click on the selected ISU 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 ISU 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. ISU) 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.