If the Product key was on the back of your computer, it was most likely an OEM installation.
Microsoft will not replace these copies. You have to get one from the computer manufacturers.
If they don't have copies for sale, try
www.restoredisks.com
"Peter" <> wrote in message news

9_Qj.44546$...
| Joel, I will do as you suggest and see what Microsoft can do for me. Thank
| god I have the product key eh? I may be back in touch with you Joel, thanks
| for your help.
|
| And also thank you ALL for your helpfull info on this matter.
|
| "Peter" <> wrote in message
| news:t9ZQj.113095$...
| >I have misplaced my Vista operating system disk, am I able to download a
| >copy of it from Micosoft website. I have the product key, as it is printed
| >on the rear of the CPU. A website link would be of great help if this is
| >possible. Many Thanks....Pete
| >
|
|