: It cannot decompile EX4 files created with any modern version of MetaTrader (Build 600+). Modern files use a binary compilation method that resists simple decompiler logic.
Here is the blog post regarding the EX4 to MQ4 decompiler repack. Understanding the EX4 to MQ4 V4.0.224.1 Decompiler Repack ex4 to mq4 v4 0 224 1 decompiler repack
The Ex4 to MQ4 v4.0.224.1 decompiler repack can be a valuable resource for traders and developers working within the MetaTrader 4 ecosystem. However, potential users should be aware of the limitations inherent in decompilation processes, including potential inaccuracies in the decompiled code and legal/ethical considerations. : It cannot decompile EX4 files created with
Files labeled as "repacks" or "freeware" versions of this decompiler are high-risk. Ex4 To Mq4 Decompiler 4.0.432 | Updated - Google Groups Understanding the EX4 to MQ4 V4
If you need help recreating an EA's logic from scratch (legally), consider hiring a verified MQL5 programmer. Upwork, Fiverr, and MQL5's freelance section have professionals who can rebuild functionality from a detailed specification.
When you compile an .mq4 file, the MetaEditor converts human-readable code into or machine instructions for the MT4 virtual machine.