utorrent

μTorrent, or uTorrent (see pronunciation) is a proprietary adware BitTorrent client owned and developed by BitTorrent, Inc. With over 150 million users it is the most widely used BitTorrent client outside China; globally only behind Xunlei. The "μ" (Greek letter "m") in its name comes from the SI prefix "micro-", referring to the program's small memory footprint: the program was designed to use minimal computer resources while offering functionality comparable to larger BitTorrent clients such as Vuze or BitComet.
The program has been in active development since its first release in 2005. Although originally developed by Ludvig Strigeus, since December 7, 2006, the code is owned and maintained by BitTorrent, Inc. The code has also been employed by BitTorrent, Inc. as the basis for version 6.0 and above of the BitTorrent client, a re-branded version of μTorrent. All versions are written in C++.

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