Avi to Mpeg is free video converter software.
License: Freeware
OS Support: WinXP, Win Vista

Flv Converter is free software Portable version available on flv-converter.
License: Freeware
OS Support: WinXP, Win Vista

Convert any format video files with fast speed and excellent video quality.
License: Freeware
OS Support: WinXP, Win Vista

AXMEDIS/MPEG-21 Editors: authoring tool.
License: Freeware
OS Support: WinXP

Convert Flash FLV video files to AVI, MPEG, WMV video files.
License: Freeware
OS Support: WinXP, WinNT 4.x, WinNT 3.x, WinME, Win Vista, Win98

SWF to AVI: Convert Flash SWF files to any video formats.
License: Freeware
OS Support: WinXP, WinNT 4.x, WinNT 3.x, WinME, Win Vista, Win98, Win95

AVI MPEG WMV Joiner lets you join multiple movie clips of AVI(DivX), MPEG/MPG and WMV/ASF together into one large movie files and create slideshows with background music from you favorite photos and pictures.
License: Freeware
OS Support: WinXP, WinNT 4.x, WinNT 3.x, WinME, Win2003, Win2000, Win98

Browse and manage your files easily with SE-Explorer.
License: Freeware
OS Support: WinXP, Win Vista

Free tool that downloads videos from Youtube or Google Video and saves it as Avi or Mpeg or Flv file to your local computer Simply paste the URL of a video into the program, press Start , and the AVI, MPEG or FLV file will be downloaded.
License: Freeware
OS Support: WinXP, Win2000, Win Vista, Win98, Win7

FLV Media Player can be used with a variety of media formats, including MPEG-4 and Flash Video (swf, flv)meaning that you can download and play content from most video sites on the web, including YouTube FLV Player is 100% free!.
License: Freeware
OS Support: WinXP, Win Vista, Win98