Microsoft Certified Professional,
Microsoft Certified Systems Administrator 2003,
Microsoft Certified Systems Administrator Messaging on Microsoft Windows Server 2003
Microsoft Certified Systems Administrator IT Professional: MCITP
Microsoft Certified Systems Administrator IT Professional: Server Administrator
Microsoft Certified Systems Administrator Technology Spezialist: MCTS
Microsoft Certified Systems Administrator Windows Server 2008 Active Directory: Configuration
Microsoft Certified Systems Administrator Windows Server 2008 Network Infrastructure: Configuration