procedure ExecConsoleApp(CommandLine: AnsiString; Output: TStringList; Errors:
 TStringList);
var
 sa: TSECURITYATTRIBUTES;
 si: TSTARTUPINFO;
 pi: TPROCESSINFORMATION;
 hPipeOutputRead: THANDLE;
 hPipeOutputWrite: THANDLE;
 hPipeErrorsRead: THANDLE;
 hPipeErrorsWrite: THANDLE;
 Res, bTest: Boolean;
 env: array[0..100] of Char;
 szBuffer: array[0..256] of Char;
 dwNumberOfBytesRead: DWORD;
 Stream: TMemoryStream;
begin
 sa.nLength := sizeof(sa);
 sa.bInheritHandle := true;
 sa.lpSecurityDescriptor := nil;
 CreatePipe(hPipeOutputRead, hPipeOutputWrite, @sa, 0);
 CreatePipe(hPipeErrorsRead, hPipeErrorsWrite, @sa, 0);
 ZeroMemory(@env, SizeOf(env));
 ZeroMemory(@si, SizeOf(si));
 ZeroMemory(@pi, SizeOf(pi));
 si.cb := SizeOf(si);
 si.dwFlags := STARTF_USESHOWWINDOW or STARTF_USESTDHANDLES;
 si.wShowWindow := SW_HIDE;
 si.hStdInput := 0;
 si.hStdOutput := hPipeOutputWrite;
 si.hStdError := hPipeErrorsWrite;
 (* Remember that if you want to execute an app with no parameters you nil the
  second parameter and use the first, you can also leave it as is with no
  problems. *)
 Res := CreateProcess(nil, pchar(CommandLine), nil, nil, true,
  CREATE_NEW_CONSOLE or NORMAL_PRIORITY_CLASS, @env, nil, si, pi);
 // Procedure will exit if CreateProcess fail
 if not Res then
 begin
  CloseHandle(hPipeOutputRead);
  CloseHandle(hPipeOutputWrite);
  CloseHandle(hPipeErrorsRead);
  CloseHandle(hPipeErrorsWrite);
  Exit;
 end;
 CloseHandle(hPipeOutputWrite);
 CloseHandle(hPipeErrorsWrite);
 //Read output pipe
 Stream := TMemoryStream.Create;
 try
  while true do
  begin
  bTest := ReadFile(hPipeOutputRead, szBuffer, 256, dwNumberOfBytesRead,
  nil);
  if not bTest then
  begin
  break;
  end;
  Stream.Write(szBuffer, dwNumberOfBytesRead);
  end;
  Stream.Position := 0;
  Output.LoadFromStream(Stream);
 finally
  Stream.Free;
 end;
 //Read error pipe
 Stream := TMemoryStream.Create;
 try
  while true do
  begin
  bTest := ReadFile(hPipeErrorsRead, szBuffer, 256, dwNumberOfBytesRead,
  nil);
  if not bTest then
  begin
  break;
  end;
  Stream.Write(szBuffer, dwNumberOfBytesRead);
  end;
  Stream.Position := 0;
  Errors.LoadFromStream(Stream);
 finally
  Stream.Free;
 end;
 WaitForSingleObject(pi.hProcess, INFINITE);
 CloseHandle(pi.hProcess);
 CloseHandle(hPipeOutputRead);
 CloseHandle(hPipeErrorsRead);
end;
(* got it from yahoo groups, so no copyrights for this piece :p and and example
  of how to use it. put a button and a memo to a form. *)
procedure TForm1.Button1Click(Sender: TObject);
var
 OutP: TStringList;
 ErrorP: TStringList;
begin
 OutP := TStringList.Create;
 ErrorP := TstringList.Create;
 ExecConsoleApp('ping localhost', OutP, ErrorP);
 Memo1.Lines.Assign(OutP);
 OutP.Free;
 ErrorP.Free;
end;