Why do COM APIs return HRESULTs? We were sure Larry @Osterman would know the answer. See his response in this video.

One Dev Question with Larry Osterman - Why do COM calls always return an HRESULT?

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One Dev Question with Larry Osterman - Why do COM calls always return an HRESULT?

One Dev Question with Larry Osterman - Why do COM calls always return an HRESULT?