Installshield Lite extension in Visual Studio 2019 stays in trial mode
I have an Installshield 2016 Express Perptual License that worked fine with a Visual Studio 2017-extension.
However on my new laptop with both VS 2017 and VS 2019 installed, I can't find an extension for Installshield Express for either of them.
I do find an extension for Installshield Lite on VS 2019 and this extension seemed to work at first. I was able to enter my Express License Key and the Lite-extension accepted it as valid. However my Installshield Lite keeps working in Trial Mode.
Is there a solution to this problem? By which I mean: can I either get an extension for Installshield Express or a validated License Key for the Lite-extension?