Oracle Data Provider for .NET requires the following:
Windows operating system
32-bit: Windows Vista (Business, Enterprise, and Ultimate Editions), Windows Server 2008, Windows Server 2003, Windows Server 2003 R2, Windows 2000 or Windows XP Professional Edition.
Oracle supports 32-bit ODP.NET on x86, AMD64, and Intel EM64T processors on these operating systems.
64 bit: Windows Vista x64 (Business, Enterprise, and Ultimate Editions), Windows Server 2008 x64, Windows Server 2003 x64, Windows Server 2003 R2 x64, or Windows XP x64.
Oracle supports 32-bit ODP.NET and 64-bit ODP.NET for Windows x64 on these operating systems.
Microsoft .NET Framework 2.0 or later
Access to Oracle9i Database Release 2 or later
Oracle Client release 11.1 and later and Oracle Net Services (included with ODP.NET Software)
Additional requirements are the following:
Applications using Microsoft Enterprise Services transactions require Oracle Services for Microsoft Transaction Server release 11.1.
Applications using OracleXmlStream and OracleXmlType classes with schema-based XMLType require access to Oracle Database 10g release 1 (10.1) or later.
See Also:
http://otn.oracle.com/tech/xml/xdkhome.html to download the Oracle XML Developer's Kit (XDK)