anchor.diff:  )
   popd
   
  -:: Remove __pycache__
  +REM Remove __pycache__
   echo remove pycache
   for /d /r %BUILDING_DIR%\Lib\site-packages\pip %%d in (__pycache__) do (
       if exist %%d rmdir /s /q "%%d"
   )
   
  -:: Remove aio
  +REM Remove aio
   echo remove aio
   for /d /r %BUILDING_DIR%\Lib\site-packages\azure\mgmt %%d in (aio) do (
       if exist %%d rmdir /s /q "%%d"
   )
   
  -:: Remove dist-info
  +REM Remove dist-info
   echo remove dist-info
   pushd %BUILDING_DIR%\Lib\site-packages
   for /d %%d in ("azure*.dist-info") do (
  
positive.code:     copy %REPO_ROOT%\privates\*.whl %TEMP_SCRATCH_FOLDER%
  )
  
  ::ensure wix is available
  if exist %WIX_DIR% (
      echo Using existing Wix at %WIX_DIR%
  )
  
negative.code: 
  if %errorlevel% neq 0 goto ERROR
  
  REM ensure propagate_env_change.exe is available
  if exist "%PROPAGATE_ENV_CHANGE_DIR%\propagate_env_change.exe" (
      echo Using existing propagate_env_change.exe at %PROPAGATE_ENV_CHANGE_DIR%
  ) else (
      pushd %PROPAGATE_ENV_CHANGE_DIR%
      echo Downloading propagate_env_change.exe.
      curl --output propagate_env_change.zip %PROPAGATE_ENV_CHANGE_DOWNLOAD_URL%
      unzip propagate_env_change.zip
      if %errorlevel% neq 0 goto ERROR
      del propagate_env_change.zip
      echo propagate_env_change.exe downloaded and extracted successfully.
  