[problem to run PS script as application]

Sounds like you are deploying the UNinstall to the device but you mentioned you have the PS1 in the INstall cmdline on the app. So what do you have in the UNinstall cmdline on that app?

[How can I install System Center Configuration Manager (Current Branch) version 1902 on Windows Server 2019 with SQL Server 2017 - Part 3]

Hi. Great post. I cannot access the Scripts.zip file. Says it no longer exists. Can you advise?