µTorrent is an efficient and feature rich BitTorrent client for Windows sporting a very small footprint. It was designed to use as little cpu, memory and space as possible while offering all the functionality expected from advanced clients.

Changelog
— 2007-07-13: Version 1.7.1 (build 3360)
- Fix: Invalid download amounts being reported to trackers for >4GB torrents

— 2007-07-13: Version 1.7 (build 3351)
- Fix: Determination of which peers are local on Windows 98 (and possibly other 95 varieties)

Download: µTorrent v1.7.1.3360 Final (Freeware)
View: Changelog
View: µTorrent Homepage
Source: MSFN