Use BinaryWriter to store information into a binary file
Imports System Imports System.IO Public Class MainClass Shared Sub Main() Dim aFileStream As FileStream Try aFileStream = New FileStream("test.txt", FileMode.OpenOrCreate,FileAccess.Write) Dim myBinaryWriter As New BinaryWriter(aFileStream) myBinaryWriter.Write("Hello world") myBinaryWriter.Write(1) Catch e As Exception Console.WriteLine(e.StackTrace) Finally If Not (aFileStream Is Nothing) Then aFileStream.Close() End Try End Sub End Class