Internet Download Manager is an best software that is used to increase the speed of the downloading files on your desktop and laptop with same connection of internet. The internet download manager promises its users to boost up the downloading speed 500% times the normal speed. By using this software, you will be able any kind of huge files on your desktop or laptop.
It consists of a download bar which will show up on your mobile screen to keep a live tracking of the progress of the download. Also, you can minimize the app in the background so that you can perform other activities in your phone. The IDM also supports the resumption of a file in download in case of interruption, which means, that if you are downloading a file and it gets stopped due to disturbances, the downloading will be resumed when the connection is available again.
Internet Download Manager supports all popular browsers including IE, Chrome, AOL, MSN, Mozilla, Netscape, Firefox, Avant Browser, and many others. Internet Download Manager supports all versions of all popular browsers, and it can be integrated into any Internet application to take over downloads using unique “Advanced Browser Integration” feature.
INTERNET DOWNLAOD MANAGER FEATURES
- Easy integration with popular web browsers, such as Internet Explorer, Firefox, Opera, Chrome, and Avant
- Grab videos from any web page
- Drag and drop files to arrange them and set priorities
- Recover your downloads
- ZIP preview and HTTPS support for downloaded files
- Built-in virus scanning
- Progressive downloading
- Download at accelerated speeds
HOW DOES INTERNET DOWNLOAD MANAGER WORK
Most of the servers allow more than one connection to a SINGLE FILE STREAM [ any file consists of stream of bits ] from any client IP address requesting the file. IDM first checks whether multiple connections to the file can be made or not.
[ This can be checked using the ‘accept-ranges’ header in the server response and then subsequently using the ‘Range’ header in the GET request to the server. ]
If yes, it can download in parts [ Explanation below as how it is actually done. ] otherwise it downloads the file linearly and at the same time the download can’t be paused.
How Are Files Downloaded In Parts?
Now that IDM knows that the server allows multiple connections, it makes requests to the server for the file that it wants to download and the server returns a “BYTE STREAM”. Now, we can specify from which byte, the byte stream to be returned from the server should start.
Now the trick that IDM does is that it makes 8 requests (this is configurable from inside the application) to the server at the same time [ using Threads ] and in all the 8 requests it sends different starting byte addresses [ which will be the starting bytes in the Byte Streams that will be returned] so that all of the file is covered.
Now the returning byte streams will start from the respective bytes in the actual file. The parts downloaded from each of the requests are then joined together in order to make the complete original file, after the downloading of every stream completes.
Dynamic Segmentation and Performance
- Dynamic file segmentation that uses in-half division rule
- Full reuse of connections that have finished downloading of assigned segments without additional connect and login stages
- Selectable timeout time and number of connections to tune IDM to your particular connection type
Dynamic file segmentation and connection reuse
Internet Download Manager has optimized file download logic. IDM divides downloaded file on file segments dynamically, unlike other download accelerators that divide downloaded file in segments once just before download process starts. Dynamic segmentation gives significant download performance improvement. When file download starts, it’s unclear how many connections may be opened. When new connection becomes available IDM finds the largest segment to download and divide it in half. Thus new connection starts downloading file from the half of the largest file segment. IDM minimizes the time needed for negotiations with servers and keeps all connections busy.
On a progress bar pink lines show start positions, blue – downloaded segments, white – the segments to download.
Once a connection has downloaded a segment (when blue bar comes to a pink line) and if the next connection has not started to downloaded its segment yet, IDM reassignes the segment to the first connection. If the next connection has started to downloaded its segment, first connection helps other slowly working connections by dividing the largest segment in half. IDM won’t divide the segment only when its size is too small for this connection type.
When connections have finished downloading all segments, IDM will assemble segments into one file.
IDM saves all file positions several times per minute. Thus after you stoped/paused downloading or even after unexpected power shutoff, IDM will resume download and assemble file correctly.
Pink lines on the picture are new start positions after Resume
HOW DO YOU CRACK IDM (INTERNET DOWNLOAD MANGER)?
Some users may want to crack their IDM app so that they can use pro features without having to pay for them.
It could be risky and might allow viruses and Trojans to steal data from your computer.
The right way to use IDM without having to pay for it is to download a FREE IDM serial key. We explain this in detail below.
IDM SERIAL KEYS – ARE THERE ANY FREE KEYS OUT THERE?
If you have purchased the full version of IDM, you received an IDM serial key from the vendor via eMail. Simply use that unique key to activate your copy of the software.
If you have downloaded a free version of IDM, copy an IDM key from the list below.
IDM SERIAL ACTIVATION KEYS
These keys will activate IDM instantly. Once activated, you can use the full version and enjoy the premium features.