On 03/30/2012 07:18 AM, Oliver Kowalke wrote: >> Normally the unwinder returns _URC_END_OF_STACK when it finds a stack >> > frame with a PC value with no associated FDE. A specific such PC value >> > is zero. > In the example _URC_END_OF_STACK is not returned. A simple memory > chunk is used as stack. Maybe I've to append a special page at the > end of the stack - or something else? Read what Ian wrote, more slowly! You have to save a PC of zero to mark the end of the stack. Andrew.