Notes on using NDINSTAL.EXE: This program is used to upgrade existing copies of NDIR.EXE to a newer version. The new version is named NDIRNEW.EXE. copy both of these files into the directory containing your current NDIR.EXE, then run NDINSTAL... It will copy your existing settings, colors, defaults, etc. into the new version, so you won't have to use NDIRMOD to change everything again. When it's done, it will delete your old version and rename NDIRNEW.EXE to NDIR.EXE. Once this is done, you can delete NDINSTAL.EXE; it doesn't serve any other purpose, and any new versions will always contain the program. Enjoy NDIR!!