Using Internet Download Manager can double your download speeds compared to the default download manager of your web browser, you can read about other awesome features of IDM on this page
Internet Download Manager
2) Exit the program. ( on the green icon of IDM found in the --> Exit)
3) Copy the file "IDMan" from the folder crack, in install folder, by default:
C:\Program Files\Internet Download Manager
and confirm to overwrite existing file.
4) Run the file "regkey" from folder "crack" to register the program.
** If after install you get the message "Fake serial number...", run "Unregister.IDM.reg" to remove any previous serial from registry, then use "RegKey Windows 32-bit or 64-bit" to activate IDM.
If you still have problems, uninstall IDM, run "Unregister.IDM.reg", reboot PC, install IDM again, use the crack & regfile to activate it. That´s all.