Microsoft has released Vista update and Zune firmware update to make Microsoft Vista compatible with its Zune player.

It was announced yesterday:

Today (Tuesday the 19th of December) we’re issuing a 22 MB update to make Zune compatible with Windows Vista. The update also improves the Zune software installation process, addressing some of the known issues that users reported. Like Jason R said recently “It is plumbing stuff, but it is stuff customers will notice and appreciate.” So you should install the update, even if you’re not running Vista.