>>On two installations, one server has an aspnet_client directory created. I would like to know why one server has it and the other not. I would like to know also what has created that and what it is used for?]
>
>That directory contains a few script libraries for client side validation on ASP.Net forms.

Is it normal that it puts it in the IIS public structure?

>Every installation should have this pretty much, so I'm not sure why you don't have it on one install..

There might be something different in my local setup.