Hopefully I can explain this well enough that you can understand my dilemma. An employee for my company wrote a simple program almost 25 years ago, but subsequently died 5 years after creating it. It's a simple simulation program (about 150k total)and it has worked great for us over the years. The problem is that now we need to update some of the information in the program and no one knows how to do this. Is there a way to update this file or open it and make changes. I have searched for programs that can either covert it to C or maybe just decompile it, but I have no idea if any of these will do what I need them to. I guess I'm hoping that someone out there has tried something similar before and has a better answer/solution for me. I'll state one thing again, just so it's clear. My company DOES own this simulation, copywrite and all. Any help would be appreciated. Thank you.