Filestreaming System.OutofMemoryException

Question

Hi,
I am getting an System.OutofmemoryException when using Filestream to load zip file. the file is 521MB. My code is:

//Insert using Filestream, file into SQL Server Table
        private void btnInsert_Click(object sender, EventArgs e)
        {
            OpenFileDialog openFileDlg = new OpenFileDialog();
            openFileDlg.InitialDirectory = Directory.GetCurrentDirectory();
            if (openFileDlg.ShowDialog() == DialogResult.OK)
            {
                FileInfo fi = new FileInfo(openFileDlg.FileName);
                FileStream fs = new FileStream(fi.FullName, FileMode.Open, FileAccess.Read);
                BinaryReader rdr = new BinaryReader(fs);
                byte[] fileData = rdr.ReadBytes((int)fs.Length);
                rdr.Close();
                fs.Close();

My program dies on this line: byte[] fileData = rdr.ReadBytes((int)fs.Length);
i have also attached the detail for the System.OutofMemoryException.  I am runing this on a Windows 7, 64bit

machine.

thanks for your help.

Sharon