"unfortunately the company from which i purchased this obj file had a fire which destroyed thier backups so they do not have the source code now"

I once worked on a project where the whole of the source archive was lost, and the backups turned out to be unusable!! :-(

Fortunately, I had recently printed a full listing of all the source (we used to do that back in those days) - so we had to retype the whole thing from the hardcopy backup!!!