Here's the description of it from its site:

Quote

ConnectFusion Download Accelerator is a very fast open source download manager. It will accelerate your downloads from the Internet and resume broken connections. It includes an easy-to-use interface and its installation does not interfere with the normal behavior of your browser. ConnectFusion Download Accelerator is 100% free, never expires, and does not contain any spyware or advertisement. Its source is freely available to any one who wants to inspect or modify it.

Homepage - http://www.connectfusion.com/
Screenshots - http://www.connectfusion.com/screen.htm
Source - https://github.com/Zero3K/connectfusion
Download - http://www.connectfusion.com/connectfusion.exe
Size - 1.17 MB

Sidenotes:
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1. I'm just an end user of it.
2. I'm promoting it because it deserves its chance at being made into something more since the developers abandoned it. All great download managers had to start as basic ones. So, this one could be also be great with the right guys working on it.
3. If anyone has any feature requests, etc., please post them on the Github page I linked to and maybe another coder who happens to read this thread/find it on Google will add them/fix it.

Maybe Dorian or another coder could work on improving it.