MT4 can be described as one of several popular platforms for traders in the Forex market. It allows automated strategies by means of automated advisors, custom scripts, and indicators. These capabilities can be developed in MetaTrader’s own language, MQL. EX4: This refers to a compiled version of the MQ4 source https://raymonduvvtu.bloggazzo.com/29848399/everything-about-ex4-to-mq4