Hello, I have a HP machine that I'm trying to rebuild (ML350 G3 - I know, it's old!). When I enter the Server Product Key I keep getting a message that the Product ID is invalid. I'm using the Product Key displayed on the COA and using the correct disc - Windows Server 2003 Standard Edition. Any ideas? Cheers, Ian

Hi, According to the description, this is a license relevant issue. It is recommend that you contact Microsoft License Center so that you can get the most qualified pool of respondents. Thanks for your understanding. Microsoft Activation Centers Worldwide Telephone Numbers http://www.microsoft.com/licensing/existing-customers/activation-centers.aspx Best Regards, Vincent Hu