Even if the zip file contains a legacy decompilation tool that isn't infected with malware, it will fail on modern EX4 files. Attempting to force a decompile of a modern EX4 file usually results in a corrupted MQ4 file filled with garbage code, broken syntax, and missing logical operators, making it completely uncompilable and useless. The Legal and Ethical Dilemma

从技术分析角度而言，509.5版本是信息最为详尽的版本之一。该版本对应的EXE文件由 进行打包，文件内部包含了完整的版本信息： 公司名称标注为“MetaQuotes Software Corp” ，文件描述为“EX4-TO-MQ4 Decompiler Free”，版权信息标注为“Copyright (C) 2007-2014 MetaQuotes Software Corp”。虽然这份版权声明与MetaQuotes一贯反对反编译的官方立场之间存在明显矛盾，但也恰恰说明该工具很可能是利用了MetaQuotes早期代码库中的某些资源而制作的。

If you download ex4 to mq4 v40427.zip , you are almost certainly downloading one of the following: 1. Trojan Horses and Malware