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I have a DLL with some COM objects. Sometimes, this objects crashes and register an error event in the Windows Event Log with lots of hexadecimal informations. I have no clue why this crashes happens.
So, How can I trace those COM objects exceptions?
The first step is to lookup the Fail code’s hex value (E.G. E_FAIL 0x80004005). I’ve had really good luck with posting that value in Google to get a sense of what the error code means.
Then, I just use trial and error to try to isolate the location in code that’s failing, and the root cause of the failure.