Talking about old files and compatibility in another thread reminded me that I have a folder (directory!) of WP 5.1 files that I have never been able to access successfully, without WP. I know I have the original WP installation floppies somewhere, but where? Pity I don't have a suitable drive now.
Anyway, a quick search found
Point is, if you have old inaccessible files, that site is a good place to find a matching program.