Yes you can. There is a program called ycamcap. I found it for free over a year ago doing a search on yahoo for it. Did a quick search and found this link for you. I did not try this one because I already have it. If you have access to the video forums you can check out some of the vids I made with it.
https://forum.oneclickchicks.com/showthread.php?t=14059
http://www.pkumar.de/ycamcap.html