InputBox I believe is a VB like function that creates a modal dialog allowing
input
and isn't necessarily just a TextBox.
The Microsoft.VisualBasic.Interaction.InputBox is always available, though I
don't
really recommend going there for such a simple dialog. Instead create a standard
Form and toss your items into place. The amount of designer time and code you'll
write is about 10-15 minutes worth your time and is fully reusable, without
having
to include the VB extension libraries.