Ken is using Windows and wants to connect some audio hardware to do some audio recording. But he's having trouble connecting via ASIO. It just hisses. He uses Reaper and Pro Tools. Leo isn't surprised that Pro Tools doesn't work with it. It's rather old. Reaper can handle it, so it isn't a limitation of Windows. So it must be that Pro Tools doesn't support ASIO. But it may support the native drivers instead.