BACKENDS: Win64 - Conf parameter still creates files in %appdata%

[lwcorp]

Using --config="conf\scummvm.ini" means I get to use a portable version for an INI file under ScummVM's own folder.

But using it still creates the blank folder %appdata%\ScummVM\Saved games (which is blank as scummvm.ini contains alternative locations for extrapath and savepath).

Please avoid this folder to ensure portability and this this empty folder is meaningless anyway.

October 2021 Update
Until #11412 (log command line parameter), which just entered an official release, there was also %appdata%\ScummVM\scummvm.log, which can now be avoided.

[digitall]

This is for usage of ScummVM as a portable application, so it needs to not create files outside of it's own installation folder:
​https://en.wikipedia.org/wiki/Portable_application

This is mainly for Win32 when running off a USB stick, but ensuring this kind of operation is useful for debugging / development even on other operating systems.

[lwcorp]

Actually it's true for Win64 too (which so far only exists as a daily build).
It's a bit ironic that the forbidden scummvm.log documents "Using configuration file: conf\scummvm.ini" which could have been an indicator that there's a folder clash.

I wonder if what this ticket describes is part of what stopped ​the ScummvVM PortableApps version.