C#

<pre>/*I have elimated some of the code in order to make it short and get straight to the point. I am noticing that my program will NOT process any of the non regular ascii characters (decimal 161 to 255 || hex A1 to FF) without the error below. All other regular ascii characters are process ok without errors.
OUTPUT::::::::::BELOW

count = 1
count = 3
count = 6

Unhandled Exception: System.ArgumentOutOfRangeException: Index was out of range.
 Must be non-negative and less than the size of the collection.
Parameter name: index
   at System.Collections.BitArray.Get(Int32 index)
   at Applica.Program.Main(String[] args) in C:\Documents and Settings\shampro\D
esktop\Program.cs:line 55
Press any key to continue . . . 
*/
 
using System;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Applica
{
    class Program
    {
        static void Main(string[] args)
        {
            DirectoryInfo da = new DirectoryInfo("C:\\Folder7");
            FileInfo[] Arr = da.GetFiles();
            if (Arr.Length == 0)
            {
                throw new InvalidOperationException("No files found.");
            }
            FileInfo ap = Arr[Arr.Length - 1];
            ulong Totbyte = (ulong)ap.Length;
            string filePath = ap.FullName;
            string temPath = Path.GetTempFileName();
            byte[] data = File.ReadAllBytes(filePath);
            File.WriteAllBytes(temPath, data);
            byte[] dataa = new byte[1];
            for (ulong counter = 0; counter < Totbyte; counter++)
            {
                dataa[0] = data[counter];
                BitArray bits = new BitArray(dataa);
                for (int count = 0; count < bits.Length;)
                {
                    if (count != 7)
                    {
                        if (bits[count] == false && bits[count + 1] == true)
                            count++;
                        if (bits[count] == false && bits[count + 1] == false)
                            count++;
                        if (bits[count] == true && bits[count + 1] == true)/////line 55 error
                            count++;
                        if (bits[count] == true && bits[count + 1] == false)
                            count++;
                        Console.WriteLine("count = {0}", count);
                    }
                }
            }
        }
    }
}

UPDATE [empdata] SET [name] = @p1, [id] = @p2, [salary] = @p3 WHERE (([name] = @p4) AND ([id] = @p5) AND ([salary] = @p6))

public delegate bool ErrorOccurred(string id, string message);

protected bool Session_ErrorOccurred(string id, string message)
{
    throw new SASException(id, message);
    return true;
}

protected bool Session_ErrorOccurred(string id, string message)
{
    Thread t = new Thread(() => ThrowSASException(id, message));
    t.Start();
    return true;
}
private void ThrowSASException(string id, string message)
{
    throw new SASException(id, message);
}