Something

string output_path = Path.Combine (Path.GetDirectoryName (Application.ExecutablePath), "Reports");
StreamReader sr = new StreamReader (new FileStream (Path.Combine (output_path, "submit.txt"), FileMode.Open));

string results = sr.ReadToEnd ();

MoMAWebServices.MoMASubmit ws = new MoMA.MoMAWebServices.MoMASubmit ();

if (ws.SubmitResults (results))	
	MessageBox.Show ("Results successfully submitted.  Thanks!");
else
	MessageBox.Show ("Result submission failed.  Please try again later.");