I deployed StartupTest with ClickOnce from LocalHost. I created a test program (StartupTest) that was just my MANASYS Jazz startup code and a Window to display the results of getting the license, with logging to record information that couldn't be displayed by VS debugging because StartupTest was to be published and run from the web site. I proved that it wasn't VS2017 -> VS2019, and in spite of testing for a couple of weeks with StartupTest I couldn't find anything wrong with my logic. I'd been unable to find the problem, it had to be in my logic, or in the change from VS2017 -> VS2019, or the change to the latest Edge browser.

The documentation for ApplicationDeployment doesn't suggest that there have been any changes to that class. The software works as it should when I use the back door code. This behaved exactly the same way.Īny ideas? I've been trying to sort this out for a couple of days, and I'm out of ideas. I experimented by publishing a version with 'the application is available online only'. This went through Case 2, Run from Web page. Previous behavior: clicking Get Jazz would check if the local version was obsolete and download a new version if necessary, then MANASYS Jazz would be started whether or not there had been a download. Because of this there is never a valid license, and it only runs when I use a back door to bypass the license code. Click on the downloaded software and it will start, this always takes the path 'Case 3: Run downloaded copy offline'. Symptoms are: click 'Get Jazz' and the software is downloaded (whether it has changed or not). Other software updates seem unlikely to be relevant. Since the last release I've changed VS2017 => VS2019 and Edge has updated to a chromium-based version.

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