The files are executables of glotex and idxtex for msdos on 386. They have been compiled by djgcc 1.10c . Run the programs by: 1. move the DOS-extender go32.exe to a directory present in PATH. run (glo|idx)tex.exe 2. create self-running executables by: copy go32.exe+glotex.exe glotex_autark.exe /b copy go32.exe+idxtex.exe idxtex_autark.exe /b run (glo|idx)tex_autark.exe