Executables are like any other exe. You have the compiled program. You dot have the source code. You're hoping to reverse compile the executable to get the vi. This isn't something you can do. If you're lucky, it's a debug gable executable. But, that also means you had a poor developer. You need the source code, not the executable, to make any changes.
When you realize that, you'll understand why the situation is exactly what was described to you. You're asking us where your company,for contractor, keeps the source code. We don't have any chance to answer this for you. You'll need to ask your company to find this answer.
