I attached a patch for 1.1.27 to bug 19392 that works around the issue by allocating memory more frugally in dlls/dbghelp/minidump.c. If I get time this coming weekend I'll see if I can't add some traces to understand why memory usage is dramatically greater when the arrays are grown by doubling. Until I understand it, I wouldn't consider my current patch anything more than a hack. -J