It is a free program that allows you to download games off your GOG.com shelf.
This is a windows download manger program to download files at more speed.
The software allows you to download entire websites and download web pages to your local hard drive.
Where can I buy Offline Commander & Internet Researcher?
Both programs are no longer developed, you can try some alternative software like WinHTTrack Website Copier, Web Dumper or Webpage Clone Maker.