If you are just running one instance of the iCamSource you can copy the iCamSource shortcut to your Startup folder in your Start Menu.
You can either drag-and-drop it into your Startup folder in the Start Menu, or into the startup folder path that can be found here:
Windows 7 and Vista
c:\Users\[username]\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
Windows XP
c:\Documents and Settings\[username]\Start Menu\Programs\Startup
That will launch the iCamSource when Windows starts. If you then also check the AutoStart checkbox in the iCamSource, the iCamSource will connect to your webcam and start waiting for incoming connections as soon as it is launched.