CamStudio is able to record all screen and audio activity on your computer and create industry-standard AVI video files and using its built-in SWF Producer can turn those AVIs into lean, mean, bandwidth-friendly Streaming Flash videos (SWFs)

Official release builds: http://p.sf.net/camstudio/stable Source Tree: http://p.sf.net/camstudio/mercurial. If interested in joining the project ask 1 of the Project admins above the description. Sent Patches to the dev mailing list.