To start the app-in, click the QR Code logo under the Annotate tab, CodeSystems panel.

See detailed information here: https://meksystems.fi/wp/autodesk-apps/qr-code-for-drawing/

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin.

You can unload the plugin without uninstalling it by unchecking the "Loaded/Unloaded" checkbox associated with the plugin in the Inventor Add-In Manager. You may have to restart Inventor to completely unload the application.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, you can uninstall it from 'Control Panel/Programs and Features' (Windows 7/8.1/10/11), just as you would uninstall any other application from your system.