Heap corruption under Win32; how to locate?

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My first choice would be a dedicated heap tool such as pageheap.exe.

Rewriting new and delete might be useful, but that doesn’t catch the allocs committed by lower-level code. If this is what you want, better to Detour the low-level alloc APIs using Microsoft Detours.

Also sanity checks such as: verify your run-time libraries match (release vs. debug, multi-threaded vs. single-threaded, dll vs. static lib), look for bad deletes (eg, delete where delete [] should have been used), make sure you’re not mixing and matching your allocs.

Also try selectively turning off threads and see when/if the problem goes away.

What does the call stack etc look like at the time of the first exception?

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