Change of the product key for Office 2003

The classical way is to uninstall the existing Office application and start a new installation with a new product key. The number can be changed more quickly in the registry.

In the registry editor, extract this subkey: HKEY_LOCAL_MACHINE \Software\Microsoft\Office\11.0\Registration

Delete values: DigitalProductID a ProductID

After having started MS Word or other MS Office 2003 application, you will be asked to enter the new product key.