I assume you need to go to second ComboBox automatically after entering two letters into Combo1.

Set Combo1.InputMask to "XX"
To Combo1.Lostfocus add:
...Combo2.Setfocus()


>I have a form with an incremental searching Combo Box. The longest value displayed in the Box is 2 characters.
>
>I would like to set the focus to another control (which happens to be another Combo Box with incremental search on) after two keys have been pressed.
>
>How would I do this?
>
>Thanks in advance,
>
>Michael