I had installed the PI AF and Data Archive on a single machine and created a sample site with various equipments. Which means all the necessary softwares (like ASP.Net 4 & 3.5) were installed and running properly. Now when I tried installing OSI PI Web Services 2012 on the Microsoft Server 2012, I got this error saying " ASP.NET feature must be installed in windows features ". Well I've checked the IIS and ASP seems to be installed there. I've attached few of the related screenshots regarding it for reference. Can someone tell me where might the problem be?