dll & application handlers

I am new with application handlers and have the following problem:

I am using using a dll for some more often used procedures. These functions include a form. Problem is that the form closes after completing the first procedure executed. Problem is that i dont want that, it has to be closed AFTER completing the procedure and AFTER i click a close button

programma code

[code ]

type
  TLibSIKBprotocolExportPakketten = procedure; stdcall;

..

procedure TForm1.Button1Click(Sender: TObject);
var
  LibHandle:THandle;
  CallExportAanvraagPakketten:TLibSIKBprotocolExportPakketten;
begin
  LibHandle:=LoadLibrary('PDlltest.dll');
  if LibHandle = 0 then
    ShowMessage('Kan PDlltest.dll niet laden');
  try
    CallExportAanvraagPakketten:=GetProcAddress(LibHandle,'ExportAanvraagPakketten');
    CallExportAanvraagPakketten;
  finally
    FreeLibrary(LibHandle);
  end;
end;

[/code]

dll code

[code ]

procedure ExportAanvraagPakketten; stdcall;
begin
  try
    FormAanvraagAnalysePakketten:=TFormAanvraagAnalysePakketten.Create(nil);
    try
      FormAanvraagAnalysePakketten.StartExportAnalysePakketten;
      FormAanvraagAnalysePakketten.close;
    finally
      FormAanvraagAnalysePakketten.Free;
    end;
  except on E: Exception do
    MessageDLg('De volgende fout is opgetreden:'+#10+
               E.Message +#10+
               'Foutcode: '+IntToStr(E.HelpContext),mtWarning,[mbOK],0);
  end;
end;

[/code]

I already heard that is has something to do with sending the application handler, but how to do this? Any help is appreciated.