Part of the code to show how I open the pipe

gistfile1.pas

procedure TAAR_client.FormShow(Sender: TObject);
const
  OpenMode = PIPE_ACCESS_DUPLEX or FILE_FLAG_OVERLAPPED;
  PipeMode = PIPE_TYPE_MESSAGE or PIPE_READMODE_MESSAGE or PIPE_WAIT;
  Instances = PIPE_UNLIMITED_INSTANCES;
begin
Console.Lines.Add('OK: Starting thread');
AAR := TAARThread.Create(False);
AAR.Priority := tpLowest;

delphiCom := CreateNamedPipe(
   PChar('\\.\pipe\delphiCom'), OpenMode, PipeMode,
    Instances,
   1024,
   1024,
   1000,
   nil);
   if delphiCom = INVALID_HANDLE_VALUE then
   begin
      Console.Lines.Add('No delphiCom pipe');

   end
   else
   begin
      Console.Lines.Add('OK: delphiCom opened')
   end;

gistfile2.txt