Where can I download xp if I have a legit key?

[lsoso]

Hi, I'm trying to figure out where to go to download xp, I called microsoft and they said that I'm SOL, I have a few unused keys, I just don't know where to go to download the iso. I used to have a few cd's for it, but I left them at my old work, and no longer am able to obtain them

 

[Nuwan Fernando]

Try the below link

http://www.microsoft.com/en-us/download/confirmation.aspx?id=25129