gistfile1.txt

NSConnection *c = [NSConnection connectionWithRegisteredName:kNameConstantWhateverYouCalledIt
                                                            host:nil];
    if (!c) {
        NSLog(@"Could not connect to  helper.");
        return;
    }
    [c setRequestTimeout:3];
    [c setReplyTimeout:3];

    @try {
        Helper *helper = (Helper*)[c rootProxy];
    }
    @catch (NSException *exception) {
        NSLog(@"Failed to get helper: %@", exception);
        return;
    }