Windows Server 2008 Enterprise delivers an enterprise-class platform for deploying business-critical applications. Help improve availability with clustering and hot-add processor capabilities. Help improve security with consolidated identity management features. Reduce infrastructure costs by consolidating applications with virtualization licensing rights. Windows Server 2008 Enterprise provides the foundation for a highly dynamic, scalable IT infrastructure.

Windows Server 2008 Standard is the most robust Windows Server operating system to date. With built-in, enhanced Web and virtualization capabilities, it is designed to increase the reliability and flexibility of your server infrastructure while helping save time and reduce costs. Powerful tools give you greater control over your servers, and streamline configuration and management tasks. Plus, enhanced security features work to harden the operating system to help protect your data and network and provide a solid, highly dependable foundation for your business.

Windows Server Foundation provides organizations with a foundation to run most business applications. It’s an affordable platform for the core portfolio of IT capabilities, including file and print sharing, remote access and security features. A familiar Windows experience makes it easy for organizations to get up and running. As the heart of a true local area network, Windows Server Foundation lets employees exchange data very securely, without requiring email or the Internet. An easy upgrade path to higher-end versions of Windows Server allows your IT solution to grow as your business grows.

Windows Web Server 2008 is designed to be used specifically as a single-purpose Web server, and delivers on a rock-solid foundation of Web infrastructure capabilities in the next-generation Windows Server 2008. Integrated with the newly re-architected IIS 7.0, ASP.NET, and the Microsoft .NET Framework, Windows Web Server 2008 enables any organization to rapidly deploy Web pages, Web sites, Web applications, and Web services.

Windows HPC Server 2008, the next generation of high-performance computing (HPC), provides enterprise-class tools for a highly productive HPC environment. Windows HPC Server 2008 can efficiently scale to thousands of processing cores and includes management consoles that help you to proactively monitor and maintain system health and stability. Job scheduling interoperability and flexibility enables integration between Windows and Linux based HPC platforms, and supports batch and service oriented application (SOA) workloads.

Windows Server 2008 for Itanium-Based Systems is optimized for large databases, line of business, and custom applications providing high availability and scalability for up to 64 processors to meet the needs of demanding and mission-critical solutions.

Windows Server 2008 Datacenter without Hyper-V.

Windows Server 2008 Enterprise without Hyper-V.