StreamReader reader = new StreamReader(@"\\Baws56067\D$\TESTENVIRONMENT_LOEWE\DeliveryNotifier\Import\wtf.txt");
        String readLine = String.Empty;

        while((readLine = reader.ReadLine()) != null) {
          Console.WriteLine(readLine);
        }
       
        reader.Close();

if(readLine != "\r\r\n")
{
Console.WriteLine(readLine);
}

if((!readLine.Equals(string.Empty)))
   Console.WriteLine(readLine);

                string[] lines = File.ReadAllLines(@"C:\WTF.txt");
                for (int i = 0; i < lines.Length; i++)
                {
                    if(!lines[i].Equals(string.Empty))
                        Console.WriteLine(lines[i]); 
                }

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace TestConsole
{
    class Program
    {
        static void Main(string[] args)
        {
            using (StreamReader myFile = new StreamReader(@"C:\Dokumente und Einstellungen\[BenutzerAusgeblendet]\Desktop\Wtf.txt"))
            {
                while (myFile.Peek() ≥ 0)
                {
                    Console.WriteLine(ReadSpecialStreamLine(myFile));
                }
            }

            Console.WriteLine("Press Key!");
            Console.ReadKey();
        }

        private static String ReadSpecialStreamLine(StreamReader p_Stream)
        {
            char tmpByte;

            StringBuilder sb = new StringBuilder();
            while (p_Stream.Peek() ≥ 0)
            {
                tmpByte = (char)p_Stream.Read();
                if (tmpByte == '\r' && p_Stream.Peek() == '\r')
                {
                    p_Stream.Read();
                }

                sb.Append(tmpByte);
            }

            return sb.ToString();
        }

    }
}

 
        while(reader.Peek() ≥ 0) {
          char currentChar = (char)reader.Read();

          if(currentChar == '\r' && reader.Peek() == '\r') {
            // Only if previous char is not new line
            if(previousChar != '\n') {
              reader.Read();
            }
          }

          previousChar = currentChar;
          sb.Append(currentChar);
        }