The ms-appinstaller protocol has been disabled.

I just found out that users can no longer install my MSIX from my website. This is a WPF application packaged with "Windows Application Packaging Project" (wapproj). When users click the "Get the app...

Aditi_Narvekar

Dec 15, 2021

bvenhaus Thank you for your question. We removed the ms-appinstaller custom scheme due to a security vulnerability. We do intend to bring this back, and are working on it. For now, you can update the link on your website by removing 'ms-appinstaller:?source='

<html>
    <body>
        <h1> MyApp Web Page </h1>
        <a href="http://mywebservice.azureedge.net/HubApp.msix"> Install app package </a>
        <a href="http://mywebservice.azureedge.net/HubAppBundle.msixbundle"> Install app bundle  </a>
        <a href="http://mywebservice.azureedge.net/HubAppSet.appinstaller"> Install related set </a>
    </body>
</html>

JamievanWalsum

Copper Contributor

Jan 13, 2022

Yes it may not satifsy your use case. I am ok with my users downloading a file instead as a work-around for now until Microsoft can restore the original functionality securely.
You can set the https://docs.microsoft.com/en-us/uwp/schemas/appinstallerschema/element-update-settings update-settings flag to OnLaunch or AutomaticBackgroundTask and the https://docs.microsoft.com/en-us/uwp/schemas/appinstallerschema/element-automatic-background-task element-automatic-background-task flag to check for updates periodically once installed.

jmiddour

Copper Contributor

Jan 18, 2022

Just as an fyi, we are not seeing automatic updates work via our workaround.

Forum Discussion

The ms-appinstaller protocol has been disabled.