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WikiProject Microsoft Windows / Computing  (Rated C-class, Mid-importance)
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Hey, this is a great page. Thanks to everyone who worked on it. Samrolken 03:24, 23 Jan 2005 (UTC)


WOW64 or WoW64? The latter is used in the definition, while the former is used everywhere else in the article. — Paul G 09:54, 8 November 2007 (UTC)


I think that the title should read "WoW64" instead of "WOW64" — Refresh100 (talk) 17:55, 14 May 2009 (UTC)


The link to "" adds nothing of value to this article. It is simply an advertisement for GoDaddy... and should be removed. (talk) 13:49, 15 August 2011 (UTC)

That's called domain parking. The link is dead then? (talk) 21:40, 1 November 2012 (UTC)


The reference to the sysnative directory (in the "Registry and file system" section)seems inacurate for Windows 7 64-bit which does not seem to have such a directory. Can anybody shed any light on this? — Preceding unsigned comment added by Philu (talkcontribs) 00:12, 20 June 2012 (UTC)

Excerpted from File System Redirector:
32-bit applications can access the native system directory by substituting %windir%\Sysnative for %windir%\System32. WOW64 recognizes Sysnative as a special alias used to indicate that the file system should not redirect the access. This mechanism is flexible and easy to use, therefore, it is the recommended mechanism to bypass file system redirection. Note that 64-bit applications cannot use the Sysnative alias as it is a virtual directory not a real one.
Windows Server 2003 and Windows XP: The Sysnative alias was added starting with Windows Vista.
Hope that helps! AfflictedHorror (talk) 17:06, 14 June 2013 (UTC)

Reasons for no Win16 support in WoW64[edit]

Win16 programs run in 16 bit Protected Mode, which is still supported by AMD64 CPUs running in "Compatibility mode". Not supported is the "Virtual 8086 mode" that was used on Win32 to run DOS/Real Mode programs. So, technically, Win16 support would have been possible in WoW64. --RokerHRO (talk) 11:35, 12 February 2016 (UTC)