[kovidgoyal]

Originally Posted by ownedbycats

I uploaded calibre.exe (5.10.1) from the application folder.

calibre.exe by itself is just a thin wrapper, responsible for loading actual code, if you uploaded it by itself, there is no way in hell it would have even run, let alone done anything else. There's the entire source code for it https://github.com/kovidgoyal/calibr...windows/main.c

all it does is load calibre-launcher.dll which it cannot even do given you didnt upload it.

And calibre-launcher.dll is in turn a thin wrapper that starts the python interpreter that loads the actual calibre codebase, from the bypy-frozen file in the installation folder.