DarkRift.Server.PluginFactory.SearchForFile C# (CSharp) Method

        private string SearchForFile(string rootDirectory, string fileName)
        {
            // Try and find the file in this directory
            string filePath = Path.Combine(rootDirectory, fileName);
            if (File.Exists(filePath))
                return filePath;

            // If it's not there look in the subdirectories
            foreach (string subDirectory in Directory.GetDirectories(rootDirectory))
            {
                string found = SearchForFile(subDirectory, fileName);
                if (found != null)
                    return found;
            }

            // Otherwise it doesn't exist
            return null;
        }
    }