how do i forward multiple e-mails at a time from outlook web access to an external e-mail account? the os is xp pro.

Hello and welcome to Bleeping Computer.
Open the mesage you wish to foward. Go to Tools> Message Rules. When the window opens set the values. You will have to set a rule for each address you wish to forward to. The destination email will be set in the bottom field. There is no limit as to how many rules you can create.