MaskedTextBox with AutoComplete in VB.Net

Hi,
I need a control in VB.Net that supports AutoComplete and Mask together. MaskedTextBox doesn't support AutoComplete and TextBox doesn't support Mask! How can we make a custom control with both of those properties together??
Any help will be greatly appreciated.

Doesn't autocomplete make the mask redundant? That's certainly MS's logic in making the two exclusive. You're not going to make suggestions in the wrong format (at least one would hope not!)