Outlook add-in sample – implementing additional controls for capturing meeting notes No ratings yet.

I’ve written a VSTO add-in sample that implements a form region with a rich text control that allows capturing rich text notes and additional information for appointments and meetings.

How it works

The add-in implements the form region displayed in the screenshot below for compose-mode meetings. Upon saving the appointment or meeting invite the content of the rich text editor is saved in a named property called additionalRTFNotes.

The property definition is http://schemas.microsoft.com/mapi/string/{00020329-0000-0000-C000-000000000046}/additionalRTFNotes and the property namespace is PS_PUBLIC_STRINGS.

For read-mode meetings (in the calendar view reading pane), the add-in implements a read-mode form region that only displays a read-only (non-editable) rich text editor.


The installers as well as the source code are available for download. The selection change logic still needs some polishing to update the controls accordingly, like for example enable the bold, italic and underline toggle buttons to match the style of the selected text but other than that I think it does the trick.


Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This sample assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures.

Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements.

NB: If you run into any problems, please let me know and I will try and address them as soon as I can.


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