He was a reverse engineer, a relic of the MetaTrader 4 golden age. He didn't want to buy the bot; he wanted to understand it. He wanted to see the logic, the mathematical skeleton beneath the skin. But the .ex4 file was a locked box. Compiled code was notoriously difficult to crack, especially the newer builds. It was like trying to turn a hamburger back into a cow.
: Many websites claiming to decompile modern EX4 files for a fee are scams or provide non-functional code. Ex4 To Mq4 Decompiler 4.0.432 - Updatedl