The Camera Assistant Software is common to Toshiba laptops. If you have problems with it, I recommend you to download a new set of drivers for your webcam. You can use the Toshiba Support website to locate your laptop's model and drivers. Download the new set of drivers and install them as well as the camera application.
Important: It's absolutely necessary to restart the laptop after each installation. This is the way Toshiba works nowadays and the camera should work normally after this process.