>>Without the new keyword, the compiler tells me I'm hiding an inherited member and if that is the intended behavior, I should use new. So, while this compiles fine, when I try to use this control on a WinForm in another project, that property still defaults to DropDown (not DropDownLlist). I'm sure it has to be something simple I'm missing. By the way, I built this in a class project instead of a component project, does that make a difference?
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>Is the control on your form inherits from MyComboBox?

Michel,

Yes. I actually created a new tab in the toolbox and dropped my dll on it. Then, I dragged the control from the toolbox to the form (which then adds a reference to the dll into the References folder in my project).

TIA,
Chad