I ran the DirectMTP for vista (since im on vista) and it didnt find anything, while i had my zune connected. So i ran the MtpInfUp.exe which just basically tells you all the mtp devices on your pc. Anyway, it generates a xml files and here's the Zune's part.
Code:
- <Msg UserText="Zune is a currently active device which belongs to WPD class" CA="1969712" LA="1970290">
<rti id="3691361879" />
<ctx id="2850271600" />
</Msg>
- <Msg UserText="Check if the device Zune which belongs to WPD class is an MTP/PTP device" CA="1973770" LA="1974014">
<rti id="3691361879" />
<ctx id="2850271600" />
</Msg>
- <Msg UserText="This is not an MTP device" CA="1974349" LA="1975148">
<rti id="3691361879" />
<ctx id="2850271600" />
</Msg>