Screen Recorders

CamStudio
CamStudio records all screen activity into the standard AVI (Audio Video Interleave) format which can be played back with Windows Media Player.
http://camstudio.org/

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Free Screen to Video V1.2
Free Screen to video is a freeware designed to record your computer screen activity in video. You can record the whole screen or only some areas of the screen in FLV, AVI, SWF (Flash) or WMV formats. Free Screen to Video is very easy to use and also records the movements of the mouse as well as the sound coming from your microphone. You can thus very easily create videos for help desk, online help, training, education and distance learning.
http://www.koyotesoft.com/indexEn.html

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Jing
Screen recording application, snapshots or as swf video supporting both mac osx and windows. Includes Screencast upload service.
http://www.jingproject.com/

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UScreenCapture
UScreenCapture is a video filter that allows capturing of computer screen. This filter can also be used with any video editing, streaming or recording application, for example you can view your screen with Windows Media Player and broadcast it with Windows Media Encoder, Unreal Live Server and Flash plugin. Capture frame rate and desktop region to capture can be configured.
http://www.umediaserver.net/umediaserver/download.html

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Wink
Wink is a Tutorial and Presentation creation software, primarily aimed at creating tutorials on how to use software. Using Wink you can capture the screen desktop, add explanations boxes, buttons, titles etc and generate a highly effective tutorial for your users. Export to flash swf flv video.
http://www.debugmode.com/wink/

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Video Editing Softwares

Windows Movie Maker
http://www.microsoft.com/windowsxp/using/moviemaker/default.mspx

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Virtual Dub
http://www.virtualdub.org/

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Cinefx
http://www.cinefx.org/cinefx/