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Some tips on debugging
When your wxHaskell program crashes, look in the application audit log for an error message and make a note of the exception code. Look at Microsoft's NTSTATUS values page, or use a search engine to find an explanation for this code.
Exception code 0x40010006
This code indicates that a debug message is written, probably by wxWidgets. Run your wxHaskell program in the GNU debugger to see the debug message(s).