What you are looking for is to integrate oAuth into the forum. To the best of my knowledge no one has done that yet. There hasn't been much work towards a Classic ASP implementation of oAuth... this is the only one I'm familiar with: http://scottdesapio.com/VBScriptOAuth/
In the most technical sense, what you want can be done - I'm not sure it's going to be done any time soon. This is not a small undertaking.
Thank you and watching a lot of sites using this method but I idea is to ease User registration and one-click inside the Forum we want to develop a way traditional forums
Login using:Twitter Facebook Maybe next link explains how to copy evidence Facebook during registration But I want to add a new user to enter his account on Facebook and Twitter are waiting for new creators to add