re: How can I determine the underlying cause of a EXCEPTION_IN_PAGE_ERROR exception?

By the way, for the first parameter for which 8 means execution, there are named constants in WinNT.h.  It is a platform-specific value, so you should probably use them instead of the literal 8.

#define EXCEPTION_READ_FAULT 0          // exception caused by a read

#define EXCEPTION_WRITE_FAULT 1         // exception caused by a write

#define EXCEPTION_EXECUTE_FAULT 8       // exception caused by an instruction fetch