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.
# Freeware: Distributed as freeware for business or personal use. However if you want to redistribute Wink, you need to get permission from the author.
# Cross-Platform: Available for all flavours of Windows and various versions of Linux (x86 only).
# Input formats: Capture screenshots from your PC, or use images in BMP/JPG/PNG/TIFF/GIF formats.
# Output formats: Macromedia Flash, Standalone EXE, PDF, PostScript, HTML or any of the above image formats. Use Flash/html for the web, EXE for distributing to PC users and PDF for printable manuals.