--- DivX
(Required for some movies)
--- ASFTools
(for joining WMV/ASF files)
--- VirtualDub
(A neat tool for joining AVI files, please make sure you've selected "Direct Stream Copy" in the Video Menu when combining files)
--- CombiMovie
(for joining MPG/MPEG files)

--- GetRight (recommended)
--- FlashGet
(Please make sure that you've filled in the authorization information in the tool's downloading dialog.)

--- Windows Media Player
--- Real Player

--- WinZip
--- WinRar