Modifying Arbitrage EA so it can work on new mt4 built

Hi 

I have an arbitrage Expert advisor ( master and slave expert advisor ). It work in old version until metatrader launch new version ( built 600). The problem is the slave EA could not read the 'csv' file that written by master EA ( usually in master / expert / file ) . Because in the new built the directory that the data written change to for example "( C:\Users\Administrator\AppData\Roaming\MetaQuotes\Terminal\8D9981ABC90DEBE1E158AA769AE3F1\MQL4\Files )" . I need an arbitrage experience programmer to do the modification so my slave could read the "csv " file written by master EA. I do not know whether adding parameter master / slave location in each expert advisor or modifying both EA to new mql5 language. But what is important is  the modification should not add more delay to write and read process thus do not affect the execution speed of the original EA.

Let me know your offer and programmer who has experience in arbitrage is preferred. 

Regards

Edo