what is an active dm? in wikipedia you can find a list of download manager software http://en.wikipedia.org/wiki/Comparison_of_download_managers
Are you looking for an active IDM (means internet download manager) or something else? It is the download manager software, are you looking for a second-hand license? Please be specific and ask clearly with in-detailed descriptions. So other DP members can reply you quickly on time.
You can get it from here along with other five best download manager. http://www.techming.com/fast-download-manager-for-windows/