Internet Download Manager or IDM is one of the finest download accelerators available for downloading purpose. It works in both Windows and Ubuntu (Linux). It can speed up downloading process upto 5 times your normal download speed. Portable version of IDM helps you to manage your downloads right from your USB sticks. Read review of Internet Download Manager (Full Version) for more details. Also learn how you can integrate IDM in Google Chrome.
How To Use In Windows?
Using portable version of IDM is very easy. You don't need to apply patch stuff. Its already registered. All you have to do is to download and run IDM [Executable File].
How To Use In Ubuntu Linux?
You have to run EXECUTABLE file in Ubuntu using Wine. If you have not installed wine then click here for complete guide to install and use wine in Ubuntu.
Download the Portable_IDM.zip and extract it on your Ubuntu desktop. Right click on it and choose Open with "Wine Windows Program Loader". Thats it. Enjoy speedy downloads.