Would you like help recovering a lost source code through legitimate means instead?
It sounds like you’re asking about — likely referring to decompiling MetaTrader 4 compiled executables ( .ex4 files), which are trading robots (EAs) or indicators written in MQL4. ex4 decompiler
If you’re trying to recover your own lost MQL4 source code, the official path is to contact MetaQuotes or the original vendor — decompilation is not supported and is ethically problematic. Would you like help recovering a lost source