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MSM file extension

The table below provides useful information about the .msm file extension. It answers questions such as:

  • What is the .msm file?
  • What program do I need to open a .msm file?
  • How can the .msm file be opened, edited or printed?
  • How can I convert .msm files to another format?
  • Where can I find the specifications for .msm?
  • Which MIME-type is associated with the .msm extension?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

.msm file extension details

Microsoft Windows Merge Module

Microsoft Windows Merge Module .msm file icon
MSM file is a Microsoft Windows Merge Module. A Windows Merge Module (MSM) is a single package that includes all files, resources, registry entries, and setup logic to install some shared files. Installer package (MSI) files incorporate MSM files in order to correctly install shared files.
Category: Archive files
Application: Windows Installer
Mime-type: application/x-msm
Magic number: -
Magic string: -
Sample: -
MSM aliases:
MSM related links:
MSM related extensions:
Compressed Microsoft Cabinet File

Microsoft Windows Installer Package

Microsoft Windows Installer Transform

Windows Software Installation Settings

Windows Installer Rollback Script

Microsoft Windows Installer Patch

InstallAnywhere.NET Project

Microsoft Windows Installer Data

Microsoft Cabinet File

Compressed Microsoft JPEG Image

Other types of files may also use the .msm file extension.

.msm file extension error

The .msm file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

mms, ms, lsm, mm, mwm, mxm, hsm, msn, msk, msh, mqm, mcm, sm, mzm, jsm

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

MMS Message Data
Autodesk 3D Studio Max Script
Zeiss LSM Image
FreeMind MindMap
MechWarrior 2 MercNet Mission Data
MAPS.ME Map Data
Matrix Market File
Assembly Header File
DAT Mesh
MegaZeux Image
open .msm file

Can't open a .msm file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .msm file association, check the FAQ.

.msm file extension

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .msm file extension, write to us!

.msm file extension

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