Extension start debugging with the same debugger as VS itself

Hi,

I'm trying to create an extension that will need to launch a debugger for a certain program, the debugger and program start up with the following code:

var targetInfo =
new VsDebugTargetInfo
{
  bstrExe = @"C:\Program\Program.exe",
  dlo = DEBUG_LAUNCH_OPERATION.DLO_CreateProcess,
  bstrRemoteMachine = "192.168.246.1:4022",
  bstrArg = "",
  bstrCurDir = "C:\\Program\\",
  bstrMdmRegisteredName = null,
  bstrEnv = "",
  bstrOptions = null,
  bstrPortName = null,
  //grfLaunch = (uint)__VSDBGLAUNCHFLAGS.DBGLAUNCH_Silent,
  //clsidCustom = VSConstants.DebugEnginesGuids.COMPlusNewArchEngine_guid,
  clsidCustom = VSConstants.DebugEnginesGuids.ManagedAndNative_guid,
};

targetInfo.cbSize = (uint)Marshal.SizeOf(targetInfo);

VsShellUtilities.LaunchDebugger(
  this.package,
  targetInfo
);

But the program behaves differently than when I launch it with the debugger manually, although the arguments I can fill in there are the same as specified here. The program doesn't seem to be able to connect to a port when launching it with the code above.

My question is how do I figure out how VS would start the debugger for the project, to have the same behaviour in both?

Thanks in advance!