The latest version of Korg's midi driver for windows, version 1.1.1, is compatible with Windows Vista. This means you can use Korg hardware with USB capability as controller to drive your DAW or virtual instruments. On a side note, I've been running Vista for over a year on my music production laptop and have almost no issues with Ableton Live and my many virtual instruments.
Off the top of my head, here is a list of Korg gear with USB capability:
- Korg Nano Series Controllers
- Korg M50
- Korg Kontrol49
- Korg M3
- Korg R3
- Korg TR
- Korg padKONTROL
- Korg X50
I tested the driver using my Korg TR and it works great. Here is a snapshot of the TR inputs and outputs mapped into Ableton Live.
You can download the driver for all devices using this link - http://korg.com/SupportResults.aspx?productid=415#ContentTabsContainer.