HI..
to create DLL : start new project and select project type as Dynamic Link Library DLL, and then declare you functions with
Keywords,when you start to build your DLL, VC++ will create .Lib File with your dll name "MyDll.Lib".
Second to use your Dll: start new exe project and include your DLL header File that have all Functions Prototype,constant,macros ... etc, and then select ->project-->setting from VC++ main menu, and select Link tab and add "Mydll.lib" in Object/Library : modules textbox, to allow linker to resolve your function from basic Dll file.
Best Regards