The KB article in now live at http://support.microsoft.com/kb/971620 and localized versions will be following along. One thing to mention is that if you have multiple SKU’s installed and you try and re-license you may get a message saying your key is not valid. This can happen if for instance you try and use a Project Server 2007 key and you have both Microsoft Office SharePoint Server 2007 and Project Server 2007 installed. The key is not really invalid – just not the key the server is expecting. The Q&A in the KB addresses this:
Q: When I try to follow the steps in the "Resolution" section, I am notified that my product key is not valid.
A: If multiple SKUs are installed, you have to provide the product key for the most inclusive product. Use the product key from the highest-listed product in the following ordered list:
- Microsoft Office SharePoint Server 2007
- Search Server 2008, Search Server 2008 Express, or Microsoft Office SharePoint Server 2007 for Search
- Microsoft Office Project Server 2007
Windows SharePoint Services 3.0 is not affected.