How to make GZDoom (or another Source Port) work with DotDC expansion?

[Adventurer]

I can install GZDoom to work with Hexen but I can't figure out how to make it work with this expansion. Using the HEXDD.WAD file throws an error. Should I use a different source port?

[inkus]

GZDoom.exe -iwad hexen.wad -file hexdd.wad

[Adventurer]

Apparently I needed to edit the GZDoom INI file and enter the path to the WAD files. I am using a source port launcher (DoomRunner) to load the WAD files but for some reason it doesn't work for this expansion (or at least I don't know how to make DoomRunner work to load the WAD files for this expansion).

[IWADSearch.Directories]
Path=../../base

[inkus]

I don't use DoonRunner, so can't help here. For (G)ZDoom without the launcher it's sufficient to just specify a path to WAD files in the INI.

The only guess is that lates GZDoom may want hexdd.wad to be treated as an IWAD instead of PWAD. Folowing command line might help:
GZDoom.exe -iwad hexdd.wad

[Francisè von Spitroast]

Rename dosbox.exe to something else, then name GZDoom.exe to dosbox.exe. Launch from Steam.
This works with any GZDoom game.