: Because x86-64 processors support 32-bit code natively, there is often no noticeable performance loss compared to running on a native 32-bit OS.
Understanding WoW64 in Microsoft Windows (Windows 32-bit on Windows 64-bit) is a compatibility layer provided by Microsoft that allows 32-bit (x86) applications to run on 64-bit versions of Windows without modification. It is essentially a bridge that translates 32-bit system calls into 64-bit calls that the Windows kernel can understand. How WoW64 Works Wow64 Microsoft
: Provides entry points for 32-bit applications, specifically for GUI and windowing functions (win32k thunks). : Because x86-64 processors support 32-bit code natively,
: Manages processor mode switching on x86-64 architectures. Key Benefits How WoW64 Works : Provides entry points for
: Requests to directories like C:\Windows\System32 from 32-bit apps are redirected to C:\Windows\SysWOW64 .
WoW64 is implemented through several key dynamic-link libraries (DLLs) found in the system: