It's not them.
Looking at the file tags, the Wolfen I'm looking for is from 1993.
I have a text file under my "Heat - ST 1993" folder, that reads :
"Elke Klein - vocals * Lutz Korndörfer - keyboards * Torsten Weber - guitars * Marcus Rippl - bass * Ralf Deutscher - drums
Lutz Korndörfer and drummer Ralf Deutscher had previously played in a German metal band called Wolfen, but by 1990 had found their calling with a strong melodic hard rock direction backed by Klein's impressive vocals."
Maybe it's that Wolfen...
Heat : https://www.discogs.com/artist/5017308-Heat-34