Have you ever read the Rules and Regulations of Posting Thread? I remember something like Helpers will not provide full developed source code. You can tell us what you have done to resolve your problem. If you have Codes returning errors then you can also paste that code so that we may correct it.
The simplest way is to run a service on the computer with the webcam, i.e. a webserver, expose the camera through it and then connect to it via the ip address or you could use your friends (yahoo, google, ask, answers, bing) and search for vb6 connect webcam, of which would have returned this result...
Its VideoOcx and WebCamOcx but I cant use it very well,
If some onr knows about it
Well, I would say the first step should be to pick out a web cam that has some software available to use. I would suggest a low cost solution like X10's. Their free Software Development Kit works for VB6 and you can use theirs or some other X10 protocol compatible web cam.
If you want to do that, you'll probably find some more concrete help. Otherwise, let us know what web cam you currently have and we'll see what we can do.