Just a curious observation if I may, but could I inquire as to the logic of placing the German language files in the English folder name and the English language files in the German folder name of this package?
If you already have the English totalcmdDark.chm file in TC's program directory, this will be the default Dark help file. So you you don't need another English WCMD_ENGDARK.CHM help file in the Language directory. But a German WCMD_DEUDARK.CHM file will come into use if you change language to German.
And vice versa.
License #524 (1994)
Danish Total Commander Translator
TC 9.51 32+64bit on Win XP 32bit & Win 7, 8.1 & 10 (20H2) 64bit, 'Everything' 1.4.1.992 x64
TC 3.20 on Android 6 & 11
Try: TC Extended Menus | TC Languagebar | TC Dark Help | PHSM-Calendar