screencasting software links
Microsoft Expression Encoder: http://www.microsoft.com/expression/products/Encoder4_Overview.aspx
 Debut Video Capture Software, which is a free program that allows the user to capture video from a webcam or other connected camera and it allows the user to record their screen or take a screenshot.http://www.nchsoftware.com/capture/index.html
 Wink, which is a Tutorial and Presentation creation software, primarily aimed at creating tutorials on how to use software (like a tutor for MS-Word/Excel etc). Using Wink you can capture screenshots, add explanations boxes, buttons, titles etc and generate a highly effective tutorial for your users.