How To Add an Existing cpp File To A Project

• Copy  the *.cpp file that you would like to add to your project to the project's directory
• Launch Visual C++, and open the project to which you will add the *.cpp file
• From the "Project" menu select Add To Project -> File...
• Point the resulting dialog box to the *.cpp that you would like to add and click OK (Note: You must have the file type option set to *.cpp files in the lower portion of the dialog box)
• This action will not open the recently added *.cpp file, you will now need to open that file if you want to work on it.