Persistence pays off. That flash of the command screen had a message: needs argument.
I found that out by opening the DOS screen using Run cmd, then working my way to the directory where I have hex2ccf.exe, then running it. Fortunately, John built a great error message into the program. The program needs to see: hex2ccf [source .hex file] [.ccf file to be created]
Lo! Behold! 'Tis done!
pfroepfer -- that word is just there so I can search for this thread later.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw