I have heard of this behavior from various people using various applications. It seems to happen more with 32-bit apps running on new Windows versions. The program opens and immediately closes. It is only runs for a second or less. I have tried turning off data execution prevention which does not help. I am thinking maybe a security feature of Windows is shutting down my software application. The program in question is an older 32-bit application which I am developing some updates for. It accesses the network and creates servers. It is written in C and C++. I have tried it on Windows 7, Server 2008, and Server 2012. So far it only runs in XP. I would greatly appreciate any help with this project as I am running out of ideas.