ISO: Windows XP 64 bit Professional

Microsoft Windows XP 64 Bit
There's no question about it: 64-bit computing is the future, because it promises better performance and room to grow for memory-hungry applications and operating systems. In fact, millions of people already use desktops and laptops with 64-bit processors that have been available from AMD since 2003 and Intel since February 2005. With the release of Windows XP Professional x64 Edition and Windows Server 2003 x64 Edition, Microsoft takes a big first step toward a 64-bit world. But Rome wasn't built in a day, and Microsoft's transition to 64-bit will be a gradual one. Windows XP Professional x64 Edition is not available in boxed editions via resellers; it will be sold only through OEM vendors and licensing agreements. The new OS is priced the same as the 32-bit Windows XP Professional, and for a limited time, current XP Professional customers running 64-bit systems can upgrade for free.

Microsoft can afford to take a measured approach to 64-bit computing because few software applications are available in 64-bit editions and many hardware devices don't yet have compatible drivers. In fact, many of the native applications in Microsoft's new OS, such as Outlook Express and Windows Media Player, still run in 32-bit mode.

Windows XP Professional x64 Edition is a big deal for software developers because it gives them a solid Windows platform to write apps that can harness the potential of 64-bit. The release also represents a major milestone toward Microsoft's next-generation Longhorn operating system. Windows XP Professional x64 Edition promises substantial speed improvements with CAD/CAM, 3D modeling, and other high-end tools that will justify the move to the new OS. For the average user, though, 64-bit Windows is, for now, little more than a curiosity. Compatibility issues far outweigh any potential speed boosts, making it an inadvisable upgrade for all but the most die-hard hobbyists.

The good:
Supports 128GB of physical memory; offers the promise of speed boosts when coupled with matching 64-bit processors and software.

The bad:
Included apps Outlook Express and Windows Media Player remain 32-bit; even Windows Update service must be accessed using 32-bit Internet Explorer.

What's it for:
This operating system takes advantage of the 64-bit processors found in many PCs.

Who's it for:
Software developers and users of memory-hungry workstation apps such as CAD/CAM and 3D modeling.

Business use:
People using 64-bit workstations for design and development will see a performance boost.

Essential extras:
A desktop or laptop with a 64-bit processor.

The bottom line:
Only software developers and high-end workstation users will see real benefits from Windows XP Professional x64 Edition; everyone else should stick with 32-bit Windows XP instead.