How do I put a calendar on my form so users can pick dates? There are so many different ways to do this. Here's one that has the benefit of relying on no activeX controls- which makes it more portable and more distributable. It does that while still providing a really slick interface because it uses APIs rather than just text boxes on forms.
In this case Jeff Conrad has written detailed step-by-step instructions for implementing Stephen Lebans' solution. You can never go too far wrong with Stephen's solutions, and Jeff's instruction make it much easier to implement.