I download by microsoft, the beta 3 Windows Server 2008, i launch the setup, and after 1 minute it show a stringand i enter thekey or product key for continue the installation, on the iso is'not present? Is present on the site microsoft?

You'll need to get it here: http://www.microsoft.com/windowsserver2008/audsel.mspx

I have same problems. Only I have already received an evaluation DVD of Windows Server 2008, but I need a product key to activate. I registeredon the pagehttp://www.microsoft.com/windowsserver2008/audsel.mspx/ I Enter code from my DVD, registerd in opened page. But I not have serial number for install. How I can take it? Sorry my English isn't good.

Hi When you register for the Beta 3 you will get the code printed on screen in your receipt. Receipt is also emailed to you so you should check you emails as well. If you can't find your code you can go here and register: http://www.microsoft.com/technet/prodtechnol/beta/lhs/default.mspx Brjann