I've just done some work a .asp website.
The site is driven by .asp. I managed to do a reworking in xhtml and got exactly the same output. The original use of .asp seems an unnecessary complication for a fairly simple site. For the sake of consistency I've retained the .asp format but can't work out why the site would have been designed in .asp in the first place. See
Event two way radio hire.
Have I missed some hidden benefit of .asp?