True portable mode for Windows

[mrs0m30n3]

True portable mode for Windows

[eliluminado]

Try this commit e9ffa9a should be correct the portable mode. @MrS0m30n3 @sinilill

[smaragdus]

I would also appreciate true portable mode very much which will provide an easy way of carrying the program plus all its data and settings on external drives.
A simple solution might be a command-line argument, for example
youtube-dl-gui.exe --portable
which would force to save all data and settings to program folder.
Or perhaps on first run the users might be asked where to save settings.
Or this might be set in "Options" - "Data" tab where the users choose where to save setting.
For me any implementation of true portable mode would do.

[kdjfc]

Since portable mode is now started by command-line switch, I would recommend adding a shortcut to start the program in portable mode. Target pointing to
%COMSPEC% /c "SET APPDATA=.&& START .\youtube-dl-gui.exe"
with an empty starting location, and start with minimized window work well for me
BTW, a templet of ./youtube-dlg/settings.json with
"youtubedl_path": youtube-dlg"
would also be nice