Camtasia is a popular commercial screen recorder. It can record your computer screen, audio and input from a web camera. While it can produce a FLV output, many people accept the defaults and an AVI is produced, which requires a camtasia “techsmith” codec to play back. While you can download and install the codec, it may not install if you do not have Administrative Rights on the computer.
Instead, you can use the CamPlay executable program to play the AVI. Download and save the camplay.exe and then go File -> Open -> video.avi
Download the executable player (no install required). (Local Mirror Here 380KB)