User-609339402 posted
hi,
VWDE is only for used devloping the project and in that some feature is not given which is give by ii like some time url rewriting is not work in vwde but it is perfect run on iis. that's why when you completed you project devlopement then you have to deploy
your project on iis.
And it is helpful when you want to see your project ot client. You don't give your whole project to client for seeing the site. so That's time we want iis.