: These are the original source code files written in MQL4. They can be viewed and modified using the MetaEditor.
Files compiled with MT4 build 600 or higher use a different compilation method (binary code instead of byte code) that this software cannot process. ex4 to mq4 v40427zip exclusive
: Unzipping the package reveals an executable file (often decompiler.exe ). : These are the original source code files written in MQL4