OS: Windows 7 x64
Scenario: Upgrade via PA Platform app
It appears that there's no Skype v8.108.0.205, or if there was, Skype pulled it from their website.
I first tried downloading the latest Skype today (11/26/23), via the Platform updater. Error: "The downloaded copy of Skype via sPortabIe (https://go.skype.com/windows.desktop.download) is not valid and can not be installed.
So I downloaded sPortable_8.108.0.205_online.paf.exe, and ran that from the Platform app. (Apps > Install a New App.) Error: "The downloaded copy of Skype is not valid and can not be installed."
I discovered that on the Skype website, the version available for Windows is Skype-8.107.0.215.exe.
So I changed the current PA download URL (for v8.108.0.205) to the following: (removed)
And found that sPortable_8.107.0.215_online.paf.exe was still available.
I ran that from the Platform app, as above, and it successfully installed/upgraded Skype.