Two operations in a single redirect

I am doing a redirect in my asp.net page using C#. I have to give a redirect from tis page to a new one and preserve the old one too. Some web sites h开发者_开发百科ave this feature , while clicking the play button is some players, the movie is start playing and it also opens a new webpage. How to do that ?

Opening a new window is easily done, simply use Javascript. Use window.open() in the onClick method of the button and use your normal method to deal with the original page.