Posts Tagged COM

VSTO: COM Exception 0x800A01A8

Problem

COM exceptions that give you just a HRESULT to describe an exception are terrible. During some VSTO development for Outlook 2007, I kept getting a COM exception with an HRESULT of 0x800A01A8, and eventually I found  the reason why I was receiving the exception. I though I’d share since little information is available on this particular exception.

Solution

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