Am selling an executable Visual Basic 5, can this executable be decompiled to produce a workable source code or be used to read a large data file used with the executable?
Can you tell me what you're sellling in VB5 (released 1997), so I can make sure no one I know buys it?
Anything can be reverse-engineered, given enough resources. Whether I will do it - if I have nothing else to do, and my life depends on it - yes, and you are asking $100,000 to support it - yes.