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http://www.debugmode.com/wink/

Wink 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.

Here is a sample Flash tutorial created by Wink. Click the Sample: Click here to play the demo. Get latest version of Wink from this download page.