Wow64 Microsoft Link

: 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.

: Requests to directories like C:\Windows\System32 from 32-bit apps are redirected to C:\Windows\SysWOW64 . 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,