Seit gestern gibt es die RSAT (Remote Verwaltung-Tools um von Vista Admin Workstations aus Windows 2003 / 2008 Server zu verwalten).

Download für Windows Vista SP1 (X86)
Download für Windows Vista SP1 (X64)

Hier mal der Funktionsumfang:
Role Administration Tools

• Active Directory Certificate Services Tools
• Active Directory Domain Services (AD DS) Tools
• Active Directory Lightweight Directory Services (AD LDS) Tools
• DHCP Server Tools
• DNS Server Tools
• File Services Tools
• Network Policy and Access Services Tools
• Terminal Services Tools
• Universal Description, Discovery, and Integration (UDDI) Services Tools

Feature Administration Tools

• BitLocker Drive Encryption Tools
• Failover Clustering Tools
• Group Policy Management Tools
• Network Load Balancing Tools
• SMTP Server Tools
• Storage Manager for SANs Tools
• Windows System Resource Manager Tools

Diese Tools unterstützen Windows Server 2003:

• Active Directory Domain Services (AD DS) Tools
• Active Directory Lightweight Directory Services (AD LDS) Tools
• Active Directory Certification Authority Tools
• DHCP Server Tools
• DNS Server Tools
• Terminal Services Tools
• Universal Description, Discovery, and Integration (UDDI) Services Tools
• Group Policy Management Tools
• Network Load Balancing Tools

Das ganze habe ich gefunden beim Vistablog