I have a very simple exe that just uses CoCreateInstance to load a COM dll. This dll contains 1 function. I know where it is, I know what it's called etc. I know where in the exe it calls it. But I am unable to set a breakpoint that triggers using either IDA 7, or OllyDbg 1.1 or 2.0. Anyone have any tips for getting a functioning breakpoint inside a COM dll?

  • May be it is not possible because in COM realm the caller does not know where the implemented dll is. All parameters are marshaled through COM. Either use GetProcAddress() or find the function in COM dll in any disassembler. – Biswapriyo Jul 29 at 4:26

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