Getting DNN 4.x to work on Win2K3 IIS

Download ASP.net 2.0 framework form http://msdn.microsoft.com/netframework/downloads/updates/default.aspx

Then run: C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe -I

In IIS go to ASP.NET tab and change the asp.net version to 2.0XXX

In IIS click on "Webservice Extensions"
Click on ASP.NET and "allow" it.