GBTimelapse is a Windows application for the capture of time-lapse sequences. It controls a Canon PowerShot Camera connected to your computer by a USB cable. The camera's settings are changed and images are captured using the computer rather than the camera controls. A series of time-lapse images can be gathered automatically while the camera and computer are left unattended.

CanonWebcam is the software that allows to use Canon PowerShot series cameras as regular webcams for video conferencing, video recording, remote area monitoring, etc. You can use any Windows software that takes standard video capture source as input. You only need to configure your video chat or other software to use CanonWebcam Capture Source and have your camera connected to USB and powered on.