I had found the reason: ZorroMT5.zip has must be extracted and copy in MT5's ADVISOR and LIBRARIES folder. The mq5 file has to compiled. I had done it.

But now: I couldn't attach Zorro.ex5 to the MT5 chart.

In MT5 expert tab occurs the following message: "import module 'ZorroMT64.ex5' is tooold and cannot be used from 'Zorro.ex5', recompile it please."

Anybody here who knows why?