BThelper is a kind of BT-client software. It helps the user to accelerate the download speed and to protect hard disk. It cannot replace BT-client software, but it is indeed professional BT-client assistant software. It can improve the speed of connection during download. It also can accelerate the speed to find more seeds and can immediately connect to them. Normally, BT Helper can expedite speed to 100% more than usual. Moreover it is the only software which could provide disk protection function for BitTorrent download. BT-helper is the software that uses the best BT Engine to optimize the downloading speed for BitTorrent.