The best possible score is 10.
No specific info about version 6.4. Please visit the main page of Internet Download Manager on Software Informer.
fast downloader is good
It is the best I have ever used.
This tool can backup files from Internet Download Manager.
Sun Download Manager is a download managing application for Internet files.
Yet another download manager and accelerator for Windows
The AEPlans Internet Download Manager (IDM) works directly with AEPlans.