Problem solved.

Thx for solution

I've do a little script, in a package, to test the I/O function's on file ".txt"


use file;
use cfgfile;
use uo;

program textcmd_scrivifile ( who, filename )

var esito := readfile(filename);
SendSysMessage( who, "esito path: " + esito );

endprogram


Into var ESITO will must be the return of ...