 | This article needs additional citations for verification. (May 2013) |
 | This article is missing information about x64 on ARM64; ARM64EC ABI (formerly ARM64X) with 1:1 register mapping to x64 calling convention. (June 2021) |
| Other names | Windows 32-bit on Windows 64-bit |
|---|---|
| Developer(s) | Microsoft |
| Initial release | October 25, 2001 |
| Operating system | Microsoft Windows |
| Platform | IA-64, x86-64, ARM64 |
| Type | Compatibility layer |
| License | Proprietary commercial software |
| Website | docs |
In computing on Microsoft platforms, WoW64 (Windows 32-bit on Windows 64-bit) is a subsystem of the Windows operating system capable of running 32-bit applications on 64-bit Windows.[1] It is included in all 64-bit versions of Windows, except in Windows Server Server Core where it is an optional component, and Windows Nano Server where it is not included.[a] WoW64 aims to take care of many of the differences between 32-bit Windows and 64-bit Windows, particularly involving structural changes to Windows itself.
- ^ QuinnRadich; DCtheGeek; msatranjr (2020-08-19). "WOW64 Implementation Details". learn.microsoft.com. Archived from the original on 2023-04-16. Retrieved 2023-04-16.
- ^ Conway, Adam (2023-01-25). "Wine 8.0 released with better controller compatibility, experimental WoW64 support, and more". XDA Developers. Archived from the original on 2023-04-16. Retrieved 2023-04-16.
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