This is the complete set of files to generate a DM font PLAIN.

The main files are DPLAINFR.TEX or DPLAINFG.TEX

The DM-PLFMT.BAT is MSDOS file (for 386 and emTeX) which I
used to generate the DPLAINF* format.

The code page converter I use (to avoid active characters >127)
is 850DCTEX.TCP (to be transferred in BINARY). Its source
to be compiled with maketcp is 850DCTEX.MTC (to be transferred
in ASCII). Use maketcp version 1.1c or later with option -c
to generate 850DCTEX.TCP

CAUTION
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File names in this directory have been changed from the original (e.g.
fontdef.dc --> fontdef.tex) in order to have no missing file when
generating format. Thus you should put these files in a directory distinct
from your usual TEXINPUT, unless you look at DM-PLFMT.BAT to rename them
backwards.