This Internet download manager is full 100% working & its permanently lifetime , but when you connect to internet,IDM show you a dialog box about update idm ,but you should not update your IDM . First you need to download this files & you have a mediafire account and you must have login in your mediafire account, you should use the link below .........
Media fire Link 01: http://adf.ly/1XlY1N
Direct Link 02: http://www.mediafire.com/file/igwyagn6i76204n/idman618build11.exe
Google Drive :http://adf.ly/1Xp8oy
Then you install the "idman618build11" file then you see a box about Setup, Patch , Web site . First you click to setup , next you click to patch & choose 32bit , 64bit then click to patch and last click to 'Auto Registered' button & it's ready to use.