I have posted this before but I wanted to let you know that the final OneNote 2007 XML schema is posted online. Please use this doc if you creating your own OneNote content you can use this information to learn how to create valid OneNote XML. There will be a CHM (help file) version of this available in the next couple weeks, it is a lot more navigatable & also contains hyperlinks to help you jump around. If you have questions or problems please let me know. Thanks to the developers for their help in writing this up.