There's a chance that it could have been; none of the engineers still at the company knew anything about Foxpro and none of us really wanted to learn it; typically I (or anyone else suckered into fixing stuff) learned the very minimum required to find a bug.
However, until we finally got sign-off to do it in a VM it was a pretty big pain to log into the DOS boxes and fix stuff, so we were even less incentivized to become competent.
Even we had ported it over to Visual Foxpro or something, it was discontinued in 2007, meaning it would probably still have problems now...more even, since I'm reasonably certain that I could have gotten DosBox to work given enough time, which would at least effectively allow permanent free "operating system" updates.
