Rückgabewert eines Prozesses

[Luckie]

Also darum geht es mir:

Delphi-Quellcode:

function RunProcess(FileName: string; ShowCmd: DWORD; wait: Boolean; ProcID: PDWORD): Longword;
var
  StartupInfo: TStartupInfo;
  ProcessInfo: TProcessInformation;
begin
  FillChar(StartupInfo, SizeOf(StartupInfo), #0);
  StartupInfo.cb          := SizeOf(StartupInfo);
  StartupInfo.dwFlags     := STARTF_USESHOWWINDOW or STARTF_FORCEONFEEDBACK;
  StartupInfo.wShowWindow := ShowCmd;
  if not CreateProcess(nil,
    @Filename[1],
    nil,
    nil,
    False,
    CREATE_NEW_CONSOLE or
    NORMAL_PRIORITY_CLASS,
    nil,
    nil,
    StartupInfo,
    ProcessInfo)
    then
      Result := WAIT_FAILED
  else
  begin
    if wait = FALSE then
    begin
      if ProcID <> nil then ProcID^ := ProcessInfo.dwProcessId;
      exit;
    end;
    WaitForSingleObject(ProcessInfo.hProcess, INFINITE);
    GetExitCodeProcess(ProcessInfo.hProcess, Result);
  end;
  if ProcessInfo.hProcess <> 0 then
    CloseHandle(ProcessInfo.hProcess);
  if ProcessInfo.hThread <> 0 then
    CloseHandle(ProcessInfo.hThread);
end;

function GetExitCodeExpand(PID: LongWord): Integer;
var
  hProcess: THandle;
  Code: Cardinal;
begin
  result := 0;
  hProcess := OpenProcess(PROCESS_QUERY_INFORMATION, False, PID);
  if hProcess <> 0 then
  begin
    GetExitCodeProcess(hProcess, Code);
    result := Code;
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  ProcID: Cardinal;
begin
  RunProcess('expand i:\I386\xyz.CP_ d:\foo.sys', SW_SHOWNORMAL, True, @ProcID);
  ShowMessage(IntToStr(GetExitCodeExpand(ProcID)));
end;

Ich bekomme immer 0 zurück, egal ob es die Datei auf der Windows CD gibt oder nicht.