Good idea. But not working ._. I try only use x64 file. Replace in System32 on a x64 OS (14393.0), try with en_US files and fr_FR from my main OS Win7 x64. Nothing is happening when Right click Taskbar > Task manager. I try, desperately, use x32 + x64 files, try with System32 + SystemWOW64, but same situation.
What about just to put it in Program Files and create regular link? For Task Manager the Sysinternals Process Explorer is best anyway. This can replace regular TM even on hotkey.