Alright, many thanks, I have installed XBMC here I:\Programme\XBMC\XBMC using I:\Programme\XBMC\XBMC.exe -p used in a shortcut to launch. And I have copied the new XBMC folder to I:\Downloads\XBMC and made a new shortcut to launch XBMC in this folder: I:\Downloads\XBMC\XBMC.exe -p. After clicking one of the shortcuts, there shortly appears the skin (Aeon Nox, used in my old XBMC installed on C
for the new versions, hope that is alright and the new version is not affected by the old one and vice versa.
So as long as I have this -p option it will be / stay portable and if I remove -p it will behave like an installed version, I assume, and it will not be portable anymore.
And when I do a complete back up now of the XBMC folder (I:\Programme\XBMC\XBMC) I have (other than doing it for an installed version) the complete data of XBMC, no file missing, I assume.
So I can make my existing at C:\Program Files (x86)\XBMC installed XBMC portable by using this -p value in a shortcut. Could I after doing that (and having at least one time started it) move this (now being portable) XBMC from C:\Program Files (x86)\XBMC to another partition, hard disk, make a new shortcut and start it / use it e.g. here I:\Programme the way I did it before?