Extract (with a PortableApps folder at the device's root) and run OrbitDownloaderPortable.
Language fixed by launcher according UserDefaultLang (if you don't want: write UserDefaultLang=false in OrbitDownloaderPortable.ini): afr, ara, bgr, cat, chs, cht, csy, deu, ell, eng, esn, far, fin, fra, heb, hun, ind, ita, jpn, kor, mki, nld, nor, plk, ptb, ptg, rom, rus, sky, sqi, srb, swe, tha, trk, ukr, vit..
Downloads in portable folder (if you don't want: write PortableDownloads=false in OrbitDownloaderPortable.ini).
Settings of installed OrbitDownloader should be preserved.