Probably the biggest reason this has not ended up a useless piece of electronics scrap is that it was supplied with source code for the software. It was particularly nice of the company to do this (they were nice all around).
The program is called "loadice" and is written in C. I first ran it under MSDOS, then on Sun unix systems, and now it runs fine on modern Linux machines. I am currently using it along with an inexpensive USB to serial converter.
In 2012, I tracked down the files I had (the latest version was on a 3.5 inch floppy, which was still readable.) I'll note that I no longer have a floppy drive, working or otherwise. I made the necessary changes to the software to get it to run on a Linux system (which were fairly minimal) and am currently using it.
Version 2.4 is what came from a floppy along with one of my units. I made a minimum set of changes so it would compile and run under linux.Version 2.5 is the same sources, but I got more agressive with my changes. I ripped out the stuff under MSDOS ifdef and cleaned up a bunch of compiler warnings with the current gcc shipping with linux. This is what I have been using routinely.
Version 4.0b is what I found in the Linux directory on a CDROM that fell into my hands when I acquired unit C. I have never even tried to compile it.
Tom's Computer Info / tom@mmto.org