This is in the context of the http://www.viva64.com/en/b/0308/#ID0ESAGK section and these memset calls http://www.viva64.com/external-pictures/txt/LibreOffice-V597.txt Or should we just use c++11's memset_s in these places ? (And persumably either way, have rtl_freeZeroMemory call that instead of memset ?) C.