Internet Download Accelerator lets you to noticeably increase the speed of file download from the Internet using HTTP, HTTPS and FTP protocols. The acceleration is achieved by splitting a file being downloaded into several parts and downloading these parts at the same time. Internet Download Accelerator resumes broken downloads from where they left off from both HTTP, HTTPS and FTP servers.
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The portable version of IDA has a number of limitations: no browser integration, the export and import of the settings are disabled.
Download
Saves settings to application folder.
Not stealth:
Accepts manual relative paths.
No commercial use.
Displays startup screen from time to time:
The download window has Pro version ad:
System requirements: Windows 8/7/Vista/XP/2012/2008/2003/2000/NT
The app feels very light/snappy. For me, it's a keeper!