Why using your tutorial located here: https://www.advancedinstaller.com/user- ... aller.html
in appinstaller url you add in the end -> Sample.appinstaller filename
If I do so in my project i will get the resulting url as .../Sample.appinstaller/Sample.appinstaller - your software silently adds Sample.appinstaller to the end anyway - if url ends as folder or as file... no difference.
Another problem:
Is it possible to have appinstaller file to be named always as Sample.appinstaller even if in Configuration tab Output Name is: Sample_[|ProductVersion].msixbundle