64-bit Windows

The beta version of a native 64-bit version of Microsoft’s Windows XP operating system is designed to support 64-bit extended systems, including platforms based on AMD64 technology from AMD.

The beta version of a native 64-bit version of Microsoft’s Windows XP operating system is now available. It is designed to support 64-bit extended systems, including platforms based on AMD64 technology from AMD.

Microsoft made the announcement at AMD’s launch of the AMD Athlon 64 processor in San Francisco, CA. The 64-bit operating system, Windows XP 64-bit Edition for 64-Bit extended systems, will run natively on AMD Athlon 64 desktops and AMD Opteron workstations.

One benefit of the updated operating system is the Microsoft Windows on Windows 64 (WOW64) technology, which will enable customers who currently have Windows XP-compatible 32-bit applications to run those applications on the 64-bit operating system.

The beta version of Windows XP 64-bit Edition for 64-Bit extended systems is available to MSDN subscribers, and a final release is expected to be available in the first half of 2004.

Windows Server 2003 for 64-bit extended systems also is available in beta with final release expected in the first half of 2004.

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