Lazy Jonathan's Blog

I was configuring the IIS yesterday and try to make a asp.net app on the server.
On a fresh win2k3 server, windows 2003 server has .net framework 1.1 as built-incomponent. Which means most likely u need to reinstall the ASP.net 2.0 so it will register asp.net in IIS, type:

%SYSTEMROOT%\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis -i

Next, you need to activiate the ASP.net 2.0 in Web Service Extension. Also make sure your default web site is having .net framework 2.0. Just right click on Default Web site, go to ASP.Net tab and select ASP.Net 2.0

reference: How to: Configure ASP.NET Applications for an ASP.NET Version