Are you thinking about decompiling your EX4 file to MQ4?
We have researched and tested several online decompiling services, the only one we can recommend is Buffett Capital
They are previous metaquote developers who discovered a loophole in the MT4 system, they provide free decompiling tutorials, free decompilers as well as paid services to decompile complex and new build EX4 files on their website. They also offer custom MQL4 programming services.
Click here to decompile your files
Buffett Capital Reviews