Recursive Image Optimisation (Windows)

optimize.bat

:: Uses 'jpegtran.exe' and 'pngout.exe'. Go Google them.
@echo none
for /d /r %%a in (*) do (
   pushd "%%a"
     echo processing "%%a"
     md "OptimizedJPEGS"
        for %%i in (*.jpg) do "C:\imageoptimization\jpegtran.exe" -optimize -progressive -copy none "%%i" "OptimizedJPEGS\%%i"
        move /Y "OptimizedJPEGS\*.*" .
     rd "OptimizedJPEGS"
        for %%i in (*.png) do "C:\imageoptimization\pngout.exe" "%%i"
   popd
)