thanks for your reply dan, I thought I was so far out on a limb it wasnt going to happen. After I posted I downloaded messenger and have since noticed that it has a feature called application sharing, well havnt used it as i have no messenger contacts for it. Anyway it reads like you can edit while others view, I think you can give the other permi9ssion to use an app on your computer though this may be limited to just the one party while you look on?

So that is 75% the way I was envisaging it to go. So Can I ask what protocol you refer to when you say ASP.net alone will not allow it. Can the messenger type service be implemented ? Anyway thanks for your post.