Impression d'étiquettes (Dymo) en utilisant du C#

protected void print()
        {
            BinaryWriter bw = new BinaryWriter(File.Open("C:/inetpub/wwwroot/itsGestParc/Etiquette/Identification(99012).LWL", FileMode.Open, FileAccess.ReadWrite));

            //Changement du numéro de référence
            bw.BaseStream.Seek(0x9A10A, SeekOrigin.Begin);
            char[] ch = lbl_ref.Text.ToCharArray();
            byte[] byt = new byte[11];
            byt[0] = Convert.ToByte(ch[0]);
            byt[1] = Convert.ToByte(ch[1]);
            byt[2] = Convert.ToByte(ch[2]);
            byt[3] = Convert.ToByte(ch[3]);
            byt[4] = Convert.ToByte(ch[4]);
            byt[5] = Convert.ToByte(ch[5]);
            byt[6] = Convert.ToByte(ch[6]);
            byt[7] = Convert.ToByte(ch[7]);
            byt[8] = Convert.ToByte(ch[8]);
            byt[9] = Convert.ToByte(ch[9]);
            byt[10] = Convert.ToByte(ch[10]);

            for (int i = 0; i < 11; i++)
            {
                bw.Write(byt[i]);
            }
            bw.Close();

            HyperLink1.Attributes.Add("onclick", "window.open('C:/inetpub/wwwroot/itsGestParc/Etiquette/Identification(99012).LWL', 'pop', 'top=184,left=192,width=800,height=600,scrollbars=auto');");
        }