Select Code to Download

# Assuming my $mw = MainWindow(...)

...
    $mw->update;

    # etc...

#!/usr/bin/perl -w
#
...
        sleep 1;
    }
}

Thread 1:  Doing more work ...
Attempt to free non-existent shared string '_ErrorInfo_', Perl interpr
+eter: 0x23
3f3c at C:/Perl/site/lib/Tk.pm line 423.