Once again getting my hands dirty with old C++ MFC code and I ran into strange problem.
It looks like this has been well-known issue since VS 6.0 over VS2005 up to newest 2010 version.
If you are trying to debug C++ MFC application on 64Bit OS using Visual Studio 2010 you will most likely get System.AccessViolationException in “Unknow Module”.
![AccessViolation AccessViolation]()
Did some research over MSDN and as it turns out only solution to this problem is to disable RPC debugging.
![DisableRPC DisableRPC]()
In Visual Studio go to Tools->Options->Debugging->Native and just uncheck “Enable RPC debugging”. This setting is always enabled by default.
I will defiantly find my own post search for this solution in near future
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Hope it helps you and please don’t use MFC any more
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