ISR

isr icon

InstallShield uninstall information data

File type: Text file

Files with isr file extension contain uninstall information data used by InstallShield.

InstallShield creates these files for installations on Microsoft Windows.

Found 2 different file type records with the same isr filename suffix.

What is isr file?

File type category:
Text file

Date updated: October 6, 2026

The isr file extension is associated with InstallShield, a Microsoft Windows program for creating software installation packages.

An isr file stores information that InstallShield uses when uninstalling an installed program. It is typically created as _deisreg.isr alongside other files belonging to the installation.

This is an internal text-based data file for InstallShield rather than a document intended for regular editing.

How to open isr file?

An isr file can be viewed in any text editor, such as Windows Notepad. The contents are intended for InstallShield, so editing the file manually may affect the associated program's uninstall process.

Suggested software to open isr file:

Associated software actions with the isr file

Software applications that handle other tasks involving isr files:

Microsoft Windows

Go-Moku game file

File type category:
Game file

Date updated: September 27, 2026

The ISR file extension is used by Go-Moku computer game files. These files store information about a Go-Moku game.

ISR files are application-specific and are intended to be handled by the Go-Moku software that created them.

How to open isr file?

Open an ISR file with the Go-Moku game associated with it. Use the game's Open or Load command, if available, rather than opening the file in a text editor.

If Go-Moku is not installed or the file came from a different version of the game, the file may not open correctly.

How to convert isr file?

There is no standard conversion format for Go-Moku ISR files. If the game provides an export option, use it to create a different representation of the game.

Otherwise, keep the file in its original format for use with Go-Moku.

Related file extensions