We can put arguments into the config.json file inside the MSIX package to have the Launcher64.exe pass those arguments to the installed application when it is launched.
What I need to do is pass a query string to the MSIX package from a link on a web page using the appinstaller and have that query string passed as an argument to the installed application.
We are currently using clickonce but that is not supported well in Chrome so we want to move to MSIX. Chrome requires another click on a downloaded .application file.
Brett Burgeson