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When trying to access Globals.ThisAddIn.outlookApplication.Session I get a NullReferenceException on application.Session. 

Redemption.RDOSession session = Redemption.RedemptionLoader.new_RDOSession();
session.MAPIOBJECT = Globals.ThisAddIn.outlookApplication.Session.MAPIOBJECT;

The same add-in works for other users on the same machine. This callback is hit from a click event on a ribbon button in Outlook. The user has a logged in session with Exchange and can interact with Exchange server normally.

Please note I do not need to handle the null reference, I need to know why the Session is null.

Mark Dineen
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  • Patrick Hofman this question is not a duplicate, I've searched high and low. I can't post again for 90 minutes, please reactivate this question. – Mark Dineen Oct 16 '18 at 14:06
  • @Patrick Hofman - this is not a duplicate - the question is why in that particular context outlookApplication.Session is null. – Dmitry Streblechenko Oct 16 '18 at 18:33
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    you might want to avoid tagging your question as c# to avoid having people who do not fully understand the problem from jumping in and closing or downvoting your question. – Dmitry Streblechenko Oct 16 '18 at 18:33

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