This is Dark Hour, released in Canada by Microforum International, It contains usermaps for Quake, Quake Clan site links, images, and new textures, This file was originally in BIN format so I had to convert to ISO, File comes from Archive.org and I do not take credit for it, nor do I own the file either.
does it work on any quake port? I heard about DirectQ direct3d quake