Originally Posted by JosTheelen

Thanks. I am not hap, but could you add some function that checks if the extern program is still running.
So I can let MT4 save some file. Then I shell a function to read that file and do some weird calculations and save the results. If i can check that my calculations are finished, I can let MT4 read the results and work with them.

An example is BrainMaker.exe, a neural network that can be called in that way from MT4.