public string GetLocalizedPath(string file)
        {
            if (string.IsNullOrEmpty(Source.File.HelpPath))
            {
                return(null);
            }

            var culture = Pipeline.Baseline.GetCulture();

            if (!_RaisedUsingInvariantCulture && (culture == null || culture.Length == 0))
            {
                Writer.WarnUsingInvariantCulture();
                _RaisedUsingInvariantCulture = true;
                return(null);
            }

            for (var i = 0; i < culture.Length; i++)
            {
                var path = Path.Combine(Source.File.HelpPath, culture[i], file);
                if (File.Exists(path))
                {
                    return(path);
                }
            }
            return(null);
        }