I was thinking but shouldn't:
XYplorer.exe /win=max "C:\This Path"
be the same as:
XYplorer.exe "/win=max" "C:\This Path"
As of now, XYplorer's treating anything between quotations as a path even if it's clearly not in the case of the /win command.
Also as a proposal, it would be nice if you can put two paths into the command line and it would load the 1st path to the 1st pane and then the second path to the second pane. So:
XYplorer/exe "C:\Users\" "C:\Users\User\"
would open up dual pane with "C:\Users\" in left pane and "C:\Users\User\" in 2nd pane.
Or... open them up in tabs?
XYplorer Beta Club