Now, those files that are pulled off the forum are in. Then you simply turn on the 'expert advisor' button at the top of the trade platform and watch this dude auto-trade for you. You then open a currency chart such as euro/usd then drag the file over to the chart and either run the file (Expert Advisor) with the default settings from the code or you can change the 'input' settings to suit your style of trading. You then download the file from the forums to the 'experts' folder under the broker in your 'program files' and then open your broker platform and there the file will be in the 'navigation' window of your broker's MT4 trade platform. You open a demo account with any broker that supports MT4, like FXDD, Spencer financial or FXLQ. Now, one can write a file and place it in a public forum such as for all to test with their broker platform which is called MT4 (metatrader 4).
These files are all written in MQL4 (metaquote language 4). The person who wrote it won't change anything in it but it is still successful. I own a file that is copy-written and it needs some fine tuning. Using an auto-trading style is one of them granted that the file attachment you are using is well written. When trading foreign currencies which is what I do, there are a multitude of strategies to get on the winning side. I'll need to explain what this file does first.