Hi,Although you'll be installing MSN on a different computer, you won't be billed twice. All you have to do is install MSN on another computer by following the steps in this link: http://answers.msn.com/solution.aspx?solutionid=eae4f90e-634d-484b-84c1-b16d9d5eda4e. All information from your e-mail should be present.Thanks,Paolo M.