Web Download Utility – JDOWNLOADER.EXE
JDownloader.exe is the executable for a program called JDownloader. This open source, platform independent utility is written completely in Java. It simplifies downloading files from One-Click-Hosters like Rapidshare.com or Megaupload.com. It offers downloading in multiple paralell streams, captcha recognition, and automatical file extraction. You'll find more information at http://jdownloader.org/home/index.
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JDownloader.org