How to make a "drop right button"? (RESOLVED)

This button is from M$ OutLook Express 6.

How to make a button like this?


Thanks.


PS: Don't worry about the words, they're in Portuguese... :D

I Dont know about the how to make the arrow but is this good enough?

Add a Button(Button1) to a form
Add a Context(ctmTest) Menu to a form

Now Click on the context menu

now you will see 'Context Menu' near where you would normally see File, click on it and Click where it says 'Type here'
Type what you want the menu to say then add another one

VB Code:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        With ctmTest
            Dim pos As System.Drawing.Point
            pos.X = Button1.Width
            pos.Y = 1
            .Show(Button1, pos)
        End With
    End Sub

Good and simple one.

Thanks.