@GregoryHall said:

This write up is what I point people to when they have these questions (*the one my MS rep from SW said is gospel)
http://www.microsoft.com/OEM/en/licensing/sblicensing/Pages/downgrade_rights.aspx#fbid=D7zcRxMWVLN

Yeah but that says nothing about this specific case in regards to VOSE rights.