After his graduation as a graduate engineer for electrical engineering and computer science, Harald Holz learned the IT from sratch and has been started as a trainer for Novell, UNIX, Windows NT 3.1, exchange 4.0 and later SharePoint 2001. In 1997, he founded the nteam GmbH and practised in the field of Microsoft technologies ever since the Exchange 4.0 and Windows NT 3.1. Harald Holz has been an acknowledged and sought-after expert for information worker and unified communications issus.