Oracle Database, building on Oracle's unique ability to deliver Grid Computing, gives Oracle customers the agility to respond faster to changing business conditions, gain competitive advantage through technology innovation, and reduce costs.

In this Statement of Direction, Oracle Corporation provides a road map for Oracle Database running on Microsoft Windows Server 2008.
Oracle Database Support for Microsoft® Windows Server 2008

Microsoft launched its operating system: Windows Server 2008 on February 27, 2008.
For more information please visit http://www.microsoft.com/
Oracle as an industry leader meets market demands by planning to support Microsoft Windows Server 2008.

Oracle Database will be available for the following Windows Server 2008 editions:

1. Windows Web Server 2008 (x86 and x64)
2. Windows Server 2008 Standard without Hyper-V (x86 and x64)
3. Windows Server 2008 Enterprise without Hyper-V (x86 and x64)
4. Windows Server 2008 Datacenter without Hyper-V (x86 and x64)

Microsoft will release Hyper-V editions of Windows Server 2008 at a later time. Oracle will evaluate support
for these editions as they become widely available.
Microsoft Windows Server 2008 Support
Oracle plans to certify the following Oracle Database releases on Microsoft Windows Server 2008:
Oracle Database Version                           Timeframe
Oracle Database 10g Release 2 (x86)         2nd Quarter 2008
Oracle Database 10g Release 2 (x64)         2nd Quarter 2008

Planned certification includes single instance Oracle Database server, Oracle Real Application Clusters, and
Oracle Database client. Detailed installation and certification information will be available on http://metalink.oracle.com.

Source: Oracle.com