If you specifically need an older .exe or .appx file for archival purposes, some software repositories keep older versions of the Messenger setup files. Successfully got the old Windows Messenger app to work
Because these are unofficial, use them at your own risk and ensure you download from reputable sites to avoid security vulnerabilities. 3. Legacy Installers and Compatibility
While you can no longer find an official modern installer for this specific OS, here are the current ways to keep messaging on your Windows 8.1 device. 1. The Recommended Path: Messenger.com
Several third-party developers offer "wrappers" that package the web version of Messenger into a standalone application compatible with older systems like Windows 7 and 8.1.
Since native apps are no longer supported, the official and most secure way to access your chats is through a web browser.
In Google Chrome , you can create a pseudo-app experience. Go to Messenger.com, click the three dots in the top right, select "More tools," and then "Create shortcut." Check the box "Open as window" to have Messenger open in its own dedicated frame from your desktop or taskbar. 2. Third-Party "Messenger for Desktop" Wrappers