Old thread but not worth starting a new one.
I had downloaded some of Marv Klotz's programs. I just downloaded DOSBox 0.74. I am running Windows 8.1 DOSBox works, but as the name implies it is native DOS with all its gory constraints like 8.3 for filename, 8 char for directory name and better not have spaces. Longer names need to be xxxxxx~1 etc.
I had to mount my download directory before I could navigate.
Just for grins I ran the BOLTCIRC program. It ran and I input some data. Marvs program spits out the data into a DAT file which then does not want to open in Windows without my associating this with some application which may conflict with other *.DAT files.
I think Marvs programs would be a lot more useful if they were run in a graphical interface.
I may have to try programming one into a spreadsheet just for fun. I expect many of Marvs program have equivalents on various web sites, just need to find them.