What is it?

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)
Here are just a few ways you can use this software:
You can use it to create demonstration videos for any software program
Or how about creating a set of videos answering your most frequently asked questions?
You can create video tutorials for school or college class
You can use it to record a recurring problem with your computer so you can show technical support people

CamStudio: http://www.camstudio.org/CamStudio20.exe
Lossless Codec: http://www.camstudio.org/CamStudioCodec10.zip