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By rick
via voneinem-windbg.blogspot.com
Submitted: May 31 2008 / 08:13
One of the hardest things is debugging a reference count leak. COM objects lifetime depends on the reference count (read here for more...). So each client of a COM object must call AddRef on the IUnknown interface when going to use it and it must call Release when done. If any client (and there might be many many of a single one) violates this rule you get into severe trouble.
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