How to decrypt MD5 in VB.NET?

Function MD5Hash(ByVal password As String)
        Dim md5 As MD5 = New MD5CryptoServiceProvider()
        Dim result As Byte()
        result = md5.ComputeHash(Encoding.ASCII.GetBytes(password))

        Dim strBuilder As New StringBuilder()

        For i As Integer = 0 To result.Length - 1
            strBuilder.Append(result(i).ToString("x2"))
        Next

        Return strBuilder.ToString()
    End Function