anchor.diff:  call rspec -r rspec_junit_formatter -f RspecJunitFormatter -o %WORKSPACE%\test.xml -f documentation spec/functional spec/unit || GOTO :error
   
   rem # uninstall chef
  -call msiexec /qb /x %omnibus_package% || GOTO :error
  +call msiexec /qb /x %TMP%\install.msi || GOTO :error
   
   rem # clean up the workspace to save disk space
   cd %WORKSPACE%
  
positive.code: ECHO Failed with error level %ERR_LEV%
  
  rem # uninstall chef
  call msiexec /qb /x %omnibus_package%
  
  EXIT /B %ERR_LEV%
  
  
negative.code: FOR %%i IN (pkg\chef*.msi) DO SET omnibus_package=%%i
  SET omnibus_package=%WORKSPACE%\%BUILD_NUMBER%\%omnibus_package%
  
  call copy /Y %omnibus_package% %TMP%\install.msi || GOTO :error
  
  call msiexec INSTALLLOCATION=C:\opscode /qb /i %TMP%\install.msi || GOTO :error
  
  rem # use rspec and gems from omnibus
  set PATH=C:\opscode\chef\bin;C:\opscode\chef\embedded\bin;%PATH%
  