JDownload
Integrate an easy download manager into your website with the JDownload applet. No installation is required on the client's side. Very easy to use (single-click) and easy to integrate (dynamically create XML file containing URLs on server-side). Downloading folders will preserve their hierarchical structure - no need to ZIP files for each user before download. Features: resume, auto-uncompress, auto-delete-after-uncompr ess, multilingual.