Comment # 1 on bug 979265 from Wolfgang Bauer

(In reply to Enno Nagel from comment #0)
> The desktop entry of krusader should be listed in a file 
> 
> kde-mimeapps.list 
> 
> and NOT in the current file 
> 
> mimeapps.list 

Can you please elaborate?

> because of the KDE-specific parameter '-c ...' in the krusader.desktop file.

I suppose you mean '-caption "%c"', there is no '-c ...' in the
krusader.desktop file...

But where's the problem with that?
The '-caption' parameter is evaluated by krusader itself (or actually
kdelibs4), and is independent of the desktop.

And if you mean the '%c' (or '%i' for that matter), that's specified in the
freedesktop.org desktop entry specification, it's not KDE-specific at all:
https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html