Yes, MSIX appinstaller for WPF, WinUI3, and MAUI can be sideloaded using Visual Studio publish. Here are the steps:
- Open your WPF, WinUI3 or MAUI project in Visual Studio.
- Click on "Project" in the menu bar and select "Publish <project name="">".
- In the "Publish" window, select "Create App Packages".
- Select "MSIX" as the package format.
- Click "Create".
- Once the package is created, go to the "Output location" and locate the MSIX package and the appinstaller file.
- Copy both files to the target device and then run the appinstaller file.
- Follow the app installation prompts to install the app on the device.
Note that sideloading may require device developer mode to be enabled or signing the package with a certificate.