Date: 2010jan15 Language: C/C++ Product: Visual Studio C++ Q. Visual Studio: My program has a .def in with the other source files (eg the .cpp files) but Visual Studio 2005+ is ignoring it. Why? A. Previous versions of Visual Studio let you specify the .def file this way but now you have to place it in:

Properties > Linker > Input > Module Definition File

Set it to:

$(ProjectName).def