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A file with the .msixextensionis a Windows software installer.
Microsoft recently introducedMSIXas an alternative to EXE,MSI, and evenAppXpackages.
Exercise caution and ensure you trust an MSIX file’s source before running it.
Each has different strengths and weaknesses.
MSI installers are best for simple, possibly unattended, installations.
The install process won’t detect if the software already exists, or if any components are missing.
It may overwrite any files in the install path.
This simplicity means a silent, all-defaults install is a breeze for administrators to accomplish.
EXE installers are more versatile than MSI installers, but with the added capability comes complication.
This installer can include options for languages, add-ons, detecting previous installations, and more.
EXE installers allow for custom install paths and choosing which components to install.
AppX installers are used for Universal Windows Apps and share some of the benefits of MSI installers.
They are simple, straight forward installers with few choices given to the end user.
It is a straight forward installer that system administrators can even script for automatic, “unattended” installation.
Additionally, it relies on container technology, which allows for smooth uninstalls and upgrades.
Additionally, MSIX distribution outside the Microsoft Store is possible.
And with this new process, it’s easier to bring older programs in and repackage them for MSIX.
MSIX Will Even Work on Windows 7, Linux, and More!
Perhaps the most exciting feature of MSIX is that Microsoftreleased an SDKto enhance cross-platform compatibility.
When you uninstall, all the data goes with the program—no clutter left behind.
That means your system will be cleaner going forward.
It’s Still an Installer, So Be Careful!
Like any other program installer, if you don’t trust the source, you shouldn’t open it.
Even before you download the file, you should take steps toensure it is safe.
When Will I Start Seeing MSIX Files?
It might be a while before you see an MSIX file.
Adoption of a new format comes with risk and cost, so developers must weigh that against the benefits.
