JugoslavDujic:

No. Even for code compiled with /fpe:0 (produce exceptions), exceptions can still be masked by the FPCW, which is outside of control of your dll. In my Dll I have: ...

Thank you very much Jugoslav. That produced the behavior I was looking for.

I am now confused exactly what Property > Fortran > Floating point > Floating point exception handling to "Underflow gives 0.0; Abort on other IEEE exceptions" does do. I was under the impression the floating point control word was THE entity that determined whether or not floating point exceptions occurred.

John