Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        TextBox1.Text = "60"
        TextBox2.Text = "01cce143"
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim Add As Integer = Convert.ToInt32(TextBox1.Text, 16) '<- Von der Basis 16
        Dim Add2 As Integer = Convert.ToInt32(TextBox2.Text, 16)  '<- Von der Basis 16
        Label1.Text = (Add + Add2).ToString
    End Sub