The "WMH" in the filename typically refers to a "With Modified Headers" or a specific versioning tag used in early FTP archives. The ZIP file contains a replacement .WAD file for Doom II.
To play the contents of Dz2wmh.zip today, you generally need: A copy of the original DOOM2.WAD (the "IWAD"). A modern source port like GZDoom or . Dz2wmh.zip
Developed by and released in 1995, this file is a compilation and "mega-map" project that significantly expands the original game's content. Overview of Dz2wmh.zip The "WMH" in the filename typically refers to