Sample Download :
CS Version: http://code.msdn.microsoft.com/CSOneNoteRibbonAddIn-c3547362
VB Version: http://code.msdn.microsoft.com/VBOneNoteRibbonAddIn-e777952c
The code sample demonstrates a OneNote 2010 COM add-in that implements IDTExtensibility2. The add-in also supports customizing the Ribbon by implementing the IRibbonExtensibility interface. In addition, the sample also demonstrates the usage of the OneNote 2010 Object Model.
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