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what do you think of this method for creating portable apps

No

I only watched the second one and all he does is unpack the installer and repackage it as a sfx (self extracting archive). This method only works with a small number of programs and he never tells you what happens to the settings of the App.
So I'd say its not the way to go Smiling

"What about Love?" - "Overrated. Biochemically no different than eating large quantities of chocolate." - Al Pacino in The Devils Advocate

who cares about the settings

who cares about the settings Smiling
the question is what's going on in the registry ?

whatever

There isnt anything like a launcher so everything the program does to the registry will remai9n in the registry until you manually clean it Smiling

"What about Love?" - "Overrated. Biochemically no different than eating large quantities of chocolate." - Al Pacino in The Devils Advocate