Quite simple.. however "webcam ic5oc" isn't the model number.
You need the brand, followed by the model. It will be located on the Camera somewhere..
So it might be (brand) ic5oc..
Once you've found the brand, Google the brand and go to there main site, search for your model, and download the correct driver. Install, and you are away laughing.
If any problems, buy a new one. Cheap and is a quick easy fix! Good luck!