title: Can't register .net 4.0 in IIS on windows 8
body: <p>I tried running aspnet_regiis.exe -ir in an admin cmd but no luck.</p>
  <p>Any ideas?</p>
  <blockquote>
  <p>C:\Windows\Microsoft.NET\Framework64\v4.0.30319&gt;aspnet_regiis.exe -ir</p>
  <p>Microsoft (R) ASP.NET RegIIS version 4.0.30319.17929 Administration
  utility to install and uninstall ASP.NET on the local machine.
  Copyright (C) Microsoft Corporation.  All rights reserved. Start
  installing ASP.NET (4.0.30319.17929) without changing existing web
  applica tions to use this version of ASP.Net. This option is not
  supported on this version of the operating system.  Administr ators
  should instead install/uninstall ASP.NET 4.5 with IIS8 using the &quot;Turn
  Win dows Features On/Off&quot; dialog,  the Server Manager management tool,
  or the dism.e xe command line tool.  For more details please see
  <a href="http://go.microsoft.com/fwlin" rel="nofollow noreferrer">http://go.microsoft.com/fwlin</a> k/?LinkID=216771. Finished installing
  ASP.NET (4.0.30319.17929) without changing existing web appl ications
  to use this version of ASP.Net.</p>
  </blockquote>
  <p>whats all this scary talk about install/uninstall ASP.NET 4.5..</p>