IDM is the most popular download manager among all others. It provides highest download speed. It provides many system that helps you to download your files as your choice. It allows you to download files by synchronizing. And another awesome feature of this download manager is you can download Youtube videos and other mp3 file easily.
Official website - http://www.internetdownloadmanager.com/
What's new in version 6.11 build 8?
(Released: Jun 07, 2012)
Added support for Firefox 15
How to install?
Just download and unzip the file. Then Open the setup file and let the rest do it. Enjoy...!
Check This Latest patch - Download Internet Download Manager 6.xx Latest Working Patch | Mediafire
You should also try - Internet Download Manager full version crack
And also -Maximize Internet Download Manager Speed