To prevent the Cloud App Launcher from being used to run unauthorized applications or malicious software, PowerBuilder 2025 has made the following improvements to the download and execution of the launcher:
-
The launcher now only allows the download and execution of applications and executable (app.exe) that carry the "appeon" flag, ensuring the authenticity and integrity of the content being downloaded.
-
At startup, the launcher retrieves a list of permitted URLs (including Web API URL, launcher URL, and runtime URL) from the apprun.json file and only allows access to and downloading from these specified URLs.
Due to these changes, applications deployed in PowerBuilder 2025 can only be run through Cloud App Launcher V3. Cloud App Launcher V3 can coexist with Cloud App Launcher V2, but please note the following:
-
Cloud App Launcher V2 supports applications deployed in PowerBuilder 2022, 2022 R2, or 2022 R3.
-
Cloud App Launcher V3 supports applications deployed in PowerBuilder 2025 or later.
Upgrade note & limitation
To upgrade the launcher and application to PowerBuilder 2025 or later, the way for end users to complete the upgrade varies depending on the version upgraded from:
-
When upgrading from PowerBuilder 2022 R3 3391 or later, users can click the application's desktop icon to upgrade the Cloud App Launcher from V2 to V3 and start the upgraded application in the new launcher.
-
When upgrading from any version earlier than PowerBuilder 2022 R3 3391, the first time the upgraded application is started, it must be run via a web browser. After that, the application can be started through the desktop icon or the Start menu. If end users directly run the application from the desktop icon on the first run, the error "Failed to parse the configuration file" will display.
Tip
To upgrade from a version earlier than PowerBuilder 2022 R3 3391 and to avoid having to launch the application via a web browser on the first run, you can upgrade first to 2022 R3 3391 and then to 2025 or later.
