Modern EX4 files are heavily encrypted. "Old school" decompilers that worked pre-2014 no longer function on current files.
Searching for this specific executable file is risky for several reasons: ex4 to mq4 decompiler 50 1 exe
is the source code file. It’s readable by humans and can be edited in MetaEditor. Modern EX4 files are heavily encrypted
Decompilation often produces syntax errors that prevent the file from being re-compiled into a working EA. Risks of Downloading "ex4 to mq4 decompiler 50 1 exe" ex4 to mq4 decompiler 50 1 exe
If you want to replicate a strategy, it is often more effective to hire a freelance MQL4 developer to watch the EA perform and "re-code" the logic from scratch rather than trying to fix a broken, decompiled mess.