WoW64

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. 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. 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.

WoW64
Other namesWindows 32-bit on Windows 64-bit
Developer(s)Microsoft
Initial releaseOctober 25, 2001 (2001-10-25)
Operating systemMicrosoft Windows
PlatformIA-64, x86-64, ARM64
TypeCompatibility layer
LicenseProprietary commercial software
Websitedocs.microsoft.com/en-us/windows/desktop/WinProg64/running-32-bit-applications
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