Known Limitations
There are some common issues that arise with Windows XP Professional x64 Edition.
- 64-bit Windows versions do not include NTVDM or Windows on Windows, so MS-DOS or 16-bit Windows applications will not run. Some 32-bit (typically older) programs have 16-bit installers that will not run on the x64 Edition with the exception of certain 16-bit installers such as ACME Setup versions 2.6, 3.0, 3.01, 3.1 and InstallShield 5.x hardcoded into WoW64.
- Only 64-bit drivers are supported.
- Any 32-bit Windows Explorer shell extensions fail to work with 64-bit Windows Explorer. However, Windows XP x64 Edition also ships with a 32-bit Windows Explorer. It is possible to make it the default Windows Shell.
- Command prompts will not load in full-screen.
- No native support for Type 1 fonts.
- Does not contain a Web Extender Client component for Web Folders (WebDAV).
- Spell checking is not available in Outlook Express.
- IEEE1394 (FireWire) audio is not supported.
Read more about this topic: Windows XP Professional X64 Edition
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