Manfred, the key you were initially issued with, i.e., Ultimate, will only
install ultimate. If you want to install Premium you will need a premium
key, so you will need to buy a premium copy of Vista. Remember 'all'
versions of Vista are stored on the same DVD and, when you purchase Vista,
your key relates to the product you purchased, it is to transferable to
another Vista version.
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John Barnett MVP
Associate Expert
Windows - Shell/User
Web:
http://xphelpandsupport.mvps.org
Web:
http://vistasupport.mvps.org
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