anchor.diff:  )
   
   echo Downloading %GdalPackageName% ...
  -set DownloadTool=..\..\..\..\..\tools\current\Landis.Tools.DownloadFile.exe
   %DownloadTool% %GdalPackageUrl% %DownloadedPackage%
   goto :eof
   
  
positive.code: set GdalPackageUrl=%GdalPackageSite%/Download.aspx?file=%GdalPackageName%
  set DownloadDir=download
  set DownloadedPackage=%DownloadDir%\%GdalPackageName%
  set DistributionDir=dist
  set ZipFile=gdal-1-9-0-csharp-win64.zip
  set InfoZipDir=..\..\..\..\Info-ZIP
  set UnzipTool=%InfoZipDir%\unzip.exe
  
  call :download
  call :extract
  
negative.code: 
  :zipfile
  
  if exist %ZipFile% (
    echo %ZipFile% already exists.
  ) else (
  