>Trying to find out why the incremental search behavior of a combo box takes each keystroke as a new input. How do you change it? And where?

I'm not sure what you mean but here's a shot.

In order to make the incremental search use multiple keystrokes in one search, those keystrokes must occur within the time period specified by the _DblClick system memory variable. This defaults to .5 seconds so you have to type fast. One technique is to have a subclass of the Combo with a property to hold the _DblCLick value. Store off the value in the GotFocus of the control and set it to something longer (e.g. 1 second). In the LostFocus, reset it to its orginal setting.

HTH.