i tried to configure the .NET Compilation Settings in the IIS Manager but all i see is an Error Message that tells me that there is an unrecognized element in the web.config file in C:\windows\Microsoft.NET\Framework64\v.4.0.30319\config\.
A little bit strange for me is, that i get this error message on my Windows 7 System and also on a Windows Server 2008 R2.
While googling around a little bit all i found is this blog entry http://olegtarasov.me/2010/09/nastrojka-iis-7-5-i-asp-net-4/.
I tried the aspnet_regiis -i -enable command but that was not the solution for me.