This is the DMADDS 1.1 dos package for PWAD development. Should work with every registered IWAD, including DOOM2. If you only want to replace DMADDS 1.0beta, use the binary only DMADD11B.ZIP package. B. The files dmadds11.zip and dmadd11b.zip should replace the ftp.orst.edu:/pub/doom/wad_edit/misc/dmadds1b.zip files.