Right-align the drop-down portion of the ComboBox in WinForms

This question is NOT about aligning the text in the display or drop-down areas of the combobox.

There is a property named DropDownWidth that controls the width of the dropped-down portion. In my case, the combobox is located at the extreme right of a form. If the DropDownWidth exceeds the width of the combobox, the dropped-down area falls off the form (as well as the screen if the form is maximized).

Is there a way to align the dropped-down area with the right of the combo box instead of the left?

UPDATE: This question targets WinForms (.NET 4.0).