MSIX is a Windows app packaging format from Microsoft that combines the best
features of MSI, .appx, App-V, and ClickOnce to provide a modern and reliable
packaging experience.
This package offers a command line tool for creating MSIX installers from your
Flutter app, making it easy to publish your app to the Microsoft Store or host
it on a website.
📋 Installation
In your pubspec.yaml, add the msix package as a new dev dependency with
the following command:
flutter pub add --dev msix
📦 Creating an MSIX installer
To create a MSIX installer, run the following command:
dart run msix:create
⚙️ Configuring your installer
You will almost certainly want to customize various settings in the MSIX
installer, such as the application title, the default icon, and which Windows
capabilities your application needs. You can customize the generated MSIX
installer by adding declarations to an msix_config: node in your
pubspec.yaml file:
msix_config:
display_name: Flutter App
publisher_display_name: Company Name
identity_name: company.suite.flutterapp
msix_version: 1.0.0.0
logo_path: C:\path\to\logo.png
capabilities: internetClient, location, microphone, webcam
See Configurations Examples And Use Cases.
Available Configurations
MSIX configuration (click to expand)
| YAML name |
Command-line argument |
Description (from Microsoft Package manifest schema reference) |
Example |
display_name |
--display-name -d |
A friendly app name that can be displayed to users. |
Flutter App |
publisher_display_name |
--publisher-display-name -u |
A friendly name for the publisher that can be displayed to users. |
Company Name |
identity_name |
--identity-name -i |
Defines the unique identifier for the app. |
company.suite.flutterapp |
msix_version |
--version |
The version number of the package, in a.b.c.d format. see how the msix version is determined. |
1.0.0.0 |
logo_path |
--logo-path -l |
Path to an image file for use as the app icon (size recommended at least 400x400px). |
C:\images\logo.png |
trim_logo |
--trim-logo <true/false> |
If false, don’t trim the logo image, default is true. |
true |
capabilities |
--capabilities -e |
List of the capabilities the app requires. |
internetClient,location,microphone,webcam |
languages |
--languages |
Declares the language resources contained in the package. |
en-us, ja-jp |
file_extension |
--file-extension -f |
File extensions that the app may be registered to open. |
.picture, .image |
protocol_activation |
--protocol-activation |
Protocols activation that will activate the app. |
http,https |
app_uri_handler_hosts |
--app-uri-handler-hosts |
Enable apps for websites using app URI handlers app. |
test.com, test2.info |
execution_alias |
--execution-alias |
Execution alias command (cmd) that will activate the app. |
myapp |
enable_at_startup |
--enable-at-startup |
App start at startup or user log-in. |
true |
store |
--store |
Generate a MSIX file for publishing to the Microsoft Store. |
false |
os_min_version |
--os-min-version |
Set minimum OS version, default is 10.0.17763.0 |
10.0.17763.0 |
| Toast Notifications configuration |
|
|
|
| Startup Task configuration |
|
pass the app values (args) on startup or user log-in |
|
| Context Menu configuration |
|
Use your context menu dll with your app |
|
Build configuration (click to expand)
| YAML name |
Command-line argument |
Description |
Example |
debug |
--debug or --release |
Create MSIX from the debug or release build files (\build\windows\runner\<Debug/Release>), release is the default. |
true |
output_path |
--output-path -o |
The directory where the output MSIX file should be stored. |
C:\src\some\folder |
output_name |
--output-name -n |
The filename that should be given to the created MSIX file. |
flutterApp_dev |
architecture |
--architecture -h |
Describes the architecture of the code in the package, x64 or arm64, x64 is default. |
x64 |
build_windows |
--build-windows <true/false> |
If false, don’t run the build command flutter build windows, default is true. |
true |
windows_build_args |
--windows-build-args |
Any arguments for the flutter build windows command. |
--obfuscate --split-debug-info=C:\Users\me\folder |
Sign configuration (click to expand)
| YAML name |
Command-line argument |
Description |
Example |
certificate_path |
--certificate-path -c |
Path to the certificate content to place in the store. |
C:\certs\signcert.pfx or C:\certs\signcert.crt |
certificate_password |
--certificate-password -p |
Password for the certificate. |
1234 |
publisher |
--publisher -b |
The Subject value in the certificate.
Required only if publish to the store, or if the Publisher will not found automatically by this package. |
CN=BF212345-5644-46DF-8668-014043C1B138 or CN=Contoso Software, O=Contoso Corporation, C=US |
signtool_options |
--signtool-options |
Options to be provided to the signtool for app signing (see below.) |
/v /fd SHA256 /f C:/Users/me/Desktop/my.cer |
sign_msix |
--sign-msix <true/false> |
If false, don’t sign the msix file, default is true.
Note: when false, publisher is Required. |
true |
install_certificate |
--install-certificate <true/false> |
If false, don’t try to install the certificate, default is true. |
true |
✒️ Signing options
Published MSIX installers should be signed with a certificate, to help ensure
that app installs and updates come from trustworthy sources.
- For development purposes, this package is configured by default to
automatically sign your app with a self signed test certificate, which makes it easy
to test your install prior to release.
- If you publish your app to the Microsoft Store, the installation package
will be signed automatically by the store.
- If you need to use your own signing certificate, for example to release
the app outside of the Microsoft Store, you can use the configuration fields
certificate_path and certificate_password to configure a certificate of
your choice.
You can also provide custom options to the signing tool with the
--signtool-options command, as shown above. For more information on available
options, see the signtool documentation. Note that using this option overrides
the certificate_path and certificate_password fields.
Note: By default, the MSIX package will install the certificate on your
machine. You can disable this by using the --install-certificate false option, or the YAML
option install_certificate: false.
Publishing to the Microsoft Store
To generate an MSIX file for publishing to the Microsoft Store, use the
--store flag, or alternatively add store: true to the YAML configuration.
Note: For apps published to the Microsoft Store, the configuration values
publisher_display_name, identity_name, msix_version and publisher must
all be configured and should match the registered publisher and app name from
the Microsoft Store dashboard, as per this screenshot.
🌐 Publishing outside the store
You can use the App Installer file to enable your users to install and update the app from local file share.
Note: installing from the web ms-appinstaller: is disabled for now.
To create a App Installer file, first set the publish_folder_path configuration,
then run the following command:
dart run msix:publish
Available configurations for App Installer (click to expand)
App Installer configuration example:
msix_config:
display_name: Flutter App
app_installer: #<-- app installer configuration
publish_folder_path: c:\path\to\myPublishFolder
hours_between_update_checks: 0
automatic_background_task: true
update_blocks_activation: true
show_prompt: true
force_update_from_any_version: false
msix_version: 1.0.3.0
| YAML name |
Command-line argument |
Description (from Microsoft schema reference) |
Example |
publish_folder_path |
--publish-folder-path |
A path to publish folder, where the msix versions and the .appinstaller file will be saved. |
c:\path\to\myPublishFolder |
hours_between_update_checks |
--hours-between-update-checks |
Defines the minimal time gap between update checks, when the user open the app. default is 0 (will check for update every time the app opened) |
2 |
automatic_background_task |
--automatic-background-task |
Checks for updates in the background every 8 hours independently of whether the user launched the app. |
false |
update_blocks_activation |
--update-blocks-activation |
Defines the experience when an app update is checked for. |
false |
show_prompt |
--show-prompt |
Defines if a window is displayed when updates are being installed, and when updates are being checked for. |
false |
force_update_from_any_version |
--force-update-from-any-version |
Allows the app to update from version x to version x++ or to downgrade from version x to version x–. |
false |
⚠️ Unsupported Features
We added the most common features of Msix in this package, however, if you need to add or edit a feature that is not supported yet, you can do this manually.
First, create the unpackaged msix files with the following command
dart run msix:build
Then edit the files that were created in the build folder.
After that create a msix installer file from those files with the following command
dart run msix:pack
Tags: msi windows win10 win11 windows10 windows11 windows store windows installer windows packaging appx AppxManifest SignTool MakeAppx
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