BitComet

What's new in this version:

GUI Improved: redesign preferences dialog, improve option layout
    GUI Improved: new advanced option: User-agent sent to HTTP tracker
    GUI Improved: new advanced option to adjust Anti-Leech rules
    GUI Improved: new advanced option to config file path of video player
    GUI Improved: improve connection number display in task list for HTTP/FTP task
    GUI Improved: add left size column to task list (hidden by default)
    GUI Improved: add context menu to BT task peer list header, to select columns to display
    GUI Improved: BT task peer list support group display
    GUI Improved: freeze BT task peer list when ScrollLock turned on
    GUI Improved: HTTP task properties dialog will display free disk space of save location
    GUI Improved: BitComet not responding dialog can be disabled
    GUI Improved: BitComet don't hide already running emule plugin window when startup
    GUI Improved: remove task category management
    GUI Improved: remove history task list
    GUI Improved: remove video file preview window, launch external video player instead
    GUI Improved: remove BitComet resource browser from install package
    GUI Bugfix: FireFox extension can download flv file from FireFox cache
    Core Improved: remove NAT Traversal via UDP, to improve TCP transfer efficiency
    Core Improved: improve TCP half-open patch for Windows XP SP3
    Core Bugfix: after a file in BT task download finished, disconnect corresponding Long-Time Seeding connection immediately
    Core Bugfix: the pieces containing file boundary data of BT task will be download repeatedly in some situation
    Core Bugfix: BitComet does not save the BT tasks created by BC link when program exit