Converter for Microsoft Project 2002 XML file to TODOLIST XML file

using System;
using System.IO;
namespace TODOListConverter
{
	class MainClass
	{
		[STAThread]
		static int Main(string[] args)
		{
			string msg = @"**********************************************
TODOLIST Generator for Microsoft Project 2002
Created By : Maharishi Bhatia
Created Date : 13 May 2005
Version : 1.0
Description : Converter for Microsoft Project 2002 xml file to TODOLIST xml file.
**********************************************";
			Console.WriteLine(msg);
			string file = "";
		#if DEBUG
			file = @"D:\ToDoList\Converter\TODOListConverter\MSProjectPro2003XMLOutput.xml";
		#else 
			if(args.Length == 0){
				msg = @"Usage : TODOListConverter.exe <Full Path of the File to be Converted>";
				goto error;
			}
			file = args[0];
		#endif
			FileInfo f = new FileInfo(file);
			if(f.Exists){
				StreamReader s = new StreamReader(f.FullName);
				string xml = s.ReadToEnd();
				xml = System.Text.RegularExpressions.Regex.Replace(xml, "(s*)xmlns=\"http://schemas.microsoft.com/project\"(s*)",string.Empty);
				XmlTransformer transform = new XmlTransformer();
				xml = transform.Transform(xml);
				if(xml != null && xml.Length > 0){
					System.Text.StringBuilder str = new System.Text.StringBuilder(xml);
					str.Remove(0,106);
					xml = str.ToString();

					StreamWriter write = new StreamWriter(f.Directory+"\\"+"TODO_"+f.Name+".tdl",false,System.Text.Encoding.ASCII);
					write.WriteLine(xml,write.NewLine);
					write.Flush();
					write.Close();
				}else{
					msg = "Error : No data after transformation.";
					goto error;
				}
			}else{
				msg = "Error : Not a valid File";
				goto error;
			}
		#if DEBUG
			Console.ReadLine();
			return 0;
		#else
			Console.WriteLine("TODOList File {0} successfully created at {1} directory.","TODO_"+f.Name,f.Directory);
			return 0;
		#endif
			error:{
				Console.WriteLine(msg);
				return -1;
			}
		}
	}
}