copy files from sql to local drive

public void backup()
{

SqlConnection con = new SqlConnection(Connection.GetConnection());
SqlCommand command = new SqlCommand();
command.CommandText = "backup database [Pharmacy Database]to disk ="+"'"+path +"'"; command.CommandType = CommandType.Text;
command.Connection = con;
con.Open();
command.ExecuteNonQuery();
con.Close();
}

Note: At the place of the path u have to pass the folder or drive name where u wnat to take the back up.....its working for me........