Hm. Nothing to offer at all, hope he finds something - would be a right pain to re-enter so many contacts.
Now, one suggestion is to look and see what forms of file format it uses - you might also query potential new software suppliers about file import capability.
Used to be you could take a database and kick it out in a "Comma-delineated format" which would allow you to re-import that data, once you told the new program where each section belonged in the new system.
Reminds me of why my log is paper.
Good luck to him, because the DOS emulator is, I hear also going away soon as well, no more command line.
You pays your money and takes your chances: The contents of this posting are personal opinions. Persons trying to find motive, plot, logic, truth or beauty will be punshed severely under law.