David Powell from the provided me with some insight about the possibility of downlevel support for WSK, now that TDI is being deprecated. He tells me that the WSK team has been getting lots of requests for Windows XP/2003 support lately, and that it’s high on our list of things to do as soon as we get Vista out
the door.
As for Windows 2000 support, my impression is that it is pretty unlikely. If this really matters to you, I’d encourage you to follow the link in my previous post to send the WSK team feedback. Such feedback has been effective before.