Can not debug a Project started using Process.Start()

Question

I have two C# WinForm projects in the same solution lets call them A and B. Project A starts Process B via a call like below

ProcessStartInfo psi = new Proce         


        

Answer 1

In the 2nd project have it check its command line arguments, if it sees something like --debug was passed in as the first argument the 2nd program launches the debugger itself

private static void Main(string[] args)
{
    //If no debugger is attached and the argument --debug was passed launch the debugger
    if (args.Length == 1 && args[0] == "--debug" && Debugger.IsAttached == false)
        Debugger.Launch();

    //(snip) the rest of your program

}

When you do this you will get a dialog window that will allow you to choose to open a new copy of Visual Studio or just use your already open copy.

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You can also put the child process in the Image File Execution Options registry key.