The latest version is number 4.0.427.4 and was introduced in January 2014. The decomulator for EX4 files was created by the team in 2009. In other words, this program is designed to restore the source code of expert advisors (EA), technical indicators and scripts in the MetaTrader 4 trading terminal environment. The decompiler is a tool to convert EX4 files into MQ4 format.