Assuming you mean that the webcam is hooked up to the CLIENT machine, then ASP would have NOTHING TO DO with this.
ASP is on the server. The ASP code is maybe running in a huge datacenter in Sandusky, Ohio, USA.
The webcam is in Sao Paolo, Brazil.
How can the ASP code possibly interact with the webcam? Answer: It can't.
The webcam captures images or video and you *could* send the image/videio from the browser to the web server. And then the ASP code *could* perhaps save the image/video on the server. But more than likely this is not at all what you want. More than likely you want a direct connection between two clients, and so ASP would not be involved in any way.