__CxxCallUnwindDtor

[Chris]

Hello
I have a dll project in a solution that has a base (CCorba) and derived (CCorbaORBExpress) class. When I inherit the base class into the derived class, I get the following error

Code
public __gc class CCorbaORBExpress : public CCorb

Error
CorbaORBExpress.obj : error LNK2001: unresolved external symbol "void __cdecl __CxxCallUnwindDtor(void (__thiscall*)(void *),void *)" (?__CxxCallUnwindDtor@@$$J0YAXP6EXPAX@Z0@Z
C:\JHC\Debug\CCorbaInt.dll : fatal error LNK1120: 1 unresolved external

Am I missing a library or something? Not sure what's wrong

Thanks
Chris