How to insert a doc file with base 64 encription into sql server 2008 in C#?

byte[] bytes = File.ReadAllBytes(@"D:\Temp\Myfile.doc");
string encode = Convert.ToBase64String(bytes);
using (SqlConnection con = new SqlConnection(strConnect))
    {
    con.Open();
    using (SqlCommand com = new SqlCommand("INSERT INTO myTable (myColumn) VALUES (@ENC)", con))
        {
        com.Parameters.AddWithValue("@ENC", System.Text.Encoding.ASCII.GetBytes(encode));
        com.ExecuteNonQuery();
        }
    }