Command Auto Completion

I would like to replicate the Command Completion feature of the Visual Basic IDE in my own VB app. So far I've coded a rather clunky version using a textbox, a hidden listbox, a keypress event to check for matching text in the textbox and a lost focus event to take care of the tab keypress for the listbox, but it doesn't replicate the full feature set of the IDE one, such as being able to keep typing text and automatically finding the best match in the listbox.

Does anyone know of a Control or Code sample that already does this that I could just integrate into my code?

Thanks,

Jay