Cannot execute script "Trade"

 
Hi Guys,

I am trying to execute unmodified script "Trade" which is provided as sample with MT4
However, I am getting printed: Error=trade is not allowed.
What am I doing wrong?
-Stan
 
Tools - Options - Expert Advisors tab - Allow live trading
 
Tools - Options - Expert Advisors tab - Allow live trading
Thanks Slawa it works like magic.