Thanks for reply. Anyway it's great to have such things. It will help us to calm down customers while we search through issues. And I hope that it will not lazy us as raptor3676 said.
Question: With FTH on will it show me stack trace of the moment when buffer overrun occurs? Or it just hides (because of this additional memory) it and then later I will discover that sometime it was? We did kind of this stuff (a wrapper for malloc realloc and free functions) for our app but we can't control pointers so we saw actually that buffer was overrun only when this block was freed.