The underlying architecture is based on 64-bit extensions to the industry-standard x86 instruction set, allowing today's 32-bit applications to run natively on x64 processors. At the same time, new 64-bit applications are executed in 64-bit mode, which processes more data per clock cycle, allows greater access to memory, and speeds numeric calculations. The end result provides a smooth migration path to 64-bit computing.

Windows Server 2003, Standard Edition is ideal for small businesses and workgroups. Windows Server 2003, Standard Edition delivers intelligent file and printer sharing, secure Internet connectivity, centralized desktop application deployment, and Web solutions that connect employees, partners, and customers. Windows Server 2003, Standard Edition provides high levels of dependability, scalability, and security. Windows Server 2003, Standard Edition takes the best of Windows 2000 Server technology and makes it easier to deploy, manage, and use. The result: a highly productive operating system that is secure, reliable, and ready to use "out-of-the box."

The Standard Edition provides support for advanced networking features such as Internet Authentication Service (IAS), Network Bridge, and Internet Connection Sharing (ICS). It also supports four-way symmetric multiprocessing (SMP) and up to four gigabytes of RAM. Improvements include support for smart cards, bandwidth throttling, and Plug and Play support. New technologies, such as the common language runtime, strengthen security to help safeguard networks from malicious or poorly designed code. In addition, improvements to Internet Information Services 6.0 (IIS 6.0), public key infrastructure (PKI), and Kerberos make it easier to secure Windows Server 2003. New features make the Active Directory service is now faster and more robust over wide area network (WAN) connections.