Data Files

Windows Installer

by Microsoft Corporation · opens 3 file types
Windows
AT A GLANCE
DeveloperMicrosoft Corporation
PlatformsWindows
Opens3 file types
Get it fromwww.microsoft.com
Download Windows Installer

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3 file types verified
Last reviewed Nov 2026

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What is Windows Installer?

Windows Installer is a software installation and configuration service built into Microsoft Windows and maintained by Microsoft Corporation. It uses .msi package files containing installation instructions, .msp files for software patches, and .mst transform files to customize installations. The service manages application component tracking, repair operations, and rollback of failed installations.

Files Windows Installer opens

3 formats
Data Files
Developer Files
System Files

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Download Windows Installer

SOURCEwww.microsoft.comofficial site - avoid third-party download portals
PLATFORMSWindows

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programs & formats

Files Windows Installer opens most

1.CUBWindows Installer validation module file
2.IDTWindows Installer exported database table file
3.RRAWindows Installer temporary file file

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