Several free decompiler software applications claim to convert EX4 files to MQ4 files. Here are some of the most popular ones:
Modifying an old tool to work with new MT4 updates. Better Alternatives to Searching for Free Software Free Ex4 To Mq4 Decompiler Software Applications
: Many downloadable decompiler ".exe" files are flagged as high-risk by security scanners. For instance, some versions of ex4-to-mq4-decompiler-5.0.1.exe have received threat scores of 100/100 for containing trojans or generic malware. Free Ex4 To Mq4 Decompiler Software Applications