Lalit Mohan Das:
This is the best answer that I got from a thread posted by someone named Ilanio Castro.
To bypass this restriction, use the following procedure.
- Go to "Internet Download Manager" folder in the "Program Files".
- Look for file IDMGCExt.crx (This is the IDM integration extension for Chrome)
- Using 7Zip or Winzip or Winrar extract the contents of the file to a folder on desktop (or where you can write data, since in the program files you need permissions to write). To extract, change the property of the file to be opened by WinRAR. Then double click the file. It will be opened in WinRAR. Select all the files and drag them to a new folder.
- Copy the folder with the files extracted to the folder of IDM in Program Files
- Open extensions page on Google Chrome and enable the developer mode.
- Click on button "Load unpacked extension" (or something like that), navigate to the folder where you extracted the files and choose it. Done. IDM extension will be back.
-If u restart your system, again the same message will be displayed. But don't worry. Just cancel or press ok.
The extension will still be there and u will still be able to download videos from "YouTube".
Njoy.