Intermittent first-time in crash with SIG

Hello,

I just recently ported a main.cpp from 3.3.6 (Windows XP to 4.8.2 (Windows 7) (don't laugh). Also, I am now building my application in release mode. Every now and then my application will crash the first time and then after that it won't again for the time I'm using it. It is more of an every now and then thing and I've only been able to attach it once. This is the line it stopped at:
Code:

signal( SIGTERM, &(SIG_HANDLER) );
When I say crash the application goes away and i have to start it up again.

Intermittent first-time in crash with SIG_HANDLER