I have an application crash in the release mode only (MS VS2005, C++). Based on my analysis so far it appears to be corrupting the heap. I downloaded the Debug Diagnostic tool from MS and as recommended in the tool enabled the PageHeap. The application no longer crases after installing the tool. I am still able to crash in another box w/o the debug tools installed. I think I have not setup the tool correctly. Any help in this is appreciated.