To specify an executable for the debug session
In Solution Explorer, select the project that creates the DLL.
From the View menu, chooseProperty Pages.
In the Property Pages dialog box, open the Configuration Properties folder and select the Debugging category.
In the Command box, specify the path name for the container. For example, C:\Program Files\MyApplication\MYAPP.EXE.
In the Command Arguments box, specify any necessary arguments for the executable.