Is there a way to enumerate the available symbols?

 
Since available symbols differ from broker to broker, I wonder if there is a way to enumerating the available symbols (ex: "EURUSD", "GPBJPY", etc) for use in a script.
 

MetaQuotes has not divulged a method to discover the securities which are present in a Dealer's feed

 
See script SymbolList fromSet
 
Rosh:
See script SymbolList fromSet

Is the only way to manually copy the forexall.set file to the experts/files directory?

Anyway, thanks for the information.