Debug multiple EXE files using VC

How to add another project to a VC project and debug it together.
MyProgramYes: the main program auses B .exe, and then c.exe. Now, I want to debug C, but C can only be called by a and cannot be run independently. I want to debug Project A and Project C together. What can I do?
First, VC generally creates a project (workspace) as a project,
If you need multiple projects:
Method 1: Create a project and select "add to current workspace.
Method 2: an existing project can be added to the existing menu through "project" menu-"insert project to workspace.
Debugging problems:
First, when there are multiple projects in a workspace, you need to set up an activity project, that is, when you click "execute", it is started from this project, rather than other projects, you can right-click the project name (not in workspace) and select "set as active project. Set the breakpoint to debug to the specified place.
Note: If you want to use another project file, such as project. CPP should include B of Project B. h, then. in CPP, the relative path is used to specify the B. h path, but cannot be directly written as # include "B. h. Another better solution for porting is: Set the properties of Project A: Project-> Project Settings, select project A, then go to the C ++ tag, and pull it to preprocesser, add the path of Project B to additonal include directories, so that you can directly use # include "B. H "is used in project. To debug B .h or others, set the breakpoint in it.