Is this the invalid product key error that you receive?
In 2007 Microsoft Office
In Microsoft Office 2003
Please check the number located on the sticker on the back of the CD case or on your Certificate of Authenticity.
No, this is not the error I see.Click here to view or hide detailed information
Click here for information about how to find your Office 2007 product key.
Click here for information about how to find your Office 2003 product key.
Did you lose your Office product key? Are you looking for information about how to replace it?
Click here for information about how to replace a lost or damaged Microsoft Office product key.
Do you want installation and activation information about Office?
Click here for information about how to install and activate 2007 Microsoft Office system programs.
Article ID: 2549291 - Last Review: May 11, 2011 - Revision: 1