How to Create DLL Files

1. Open Visual C++ and select 'New' from the Project menu.
2. Set the project type as 'Win32 Dynamic-Link Library (.dll)' or clear the check box that says 'Use Microsoft Foundation Classes.' If you wish to do so later, you can also view these options by choosing 'Project' from Options menu.
3. Choose 'Edit' from the Project menu. Use the dialog box that pops up and add the existing .C and .DEF files to the project. Alternately, you can enter the code directly in the Visual C++ editing window.
4. Choose the Build
.dll option from the Project menu to save your project.