Subj : How to use C++ objects from DLL (compiled by Microsoft VC6 ) from C++ Builder 6? To : borland.public.cpp.borlandcpp From : "Alexander Radchenko" Date : Thu Jan 29 2004 05:27 pm I have DLL was build by Microsoft VC6 and contain C++ objects. I have header files for this DLL objects. Can I use this DLL from C++ Bulder 6? Now errors occured: [Linker Error] Unresolved external 'SOCmnObject::addRef()' referenced from SOSUMT01_ODAC_AXFORMIMPL.OBJ .