troubleshooting Question

Funky COM error

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StanChart asked on
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I have an application that calls functions in other applications using COM.  Whenever I call such a function, I always put a try {} catch (_com_error &er) {} around it.  Whenever there is an error, I display a message box with er.Description() on it.  

I received an email from one of my app users who received an error where er.Description() had all sorts of funky characters in it which leads me to believe that there was some sort of corruption.

Anyone know how/why this would happen?
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