IIS Install
Remark: This installation guide is based on Windows Server 2012 R2 (Windows Server Version 6.2 Build 9200).
In this first step, the actual web server (Internet Information Services, Version 8-5-9600.16384) will be installed.
Within the Server-Manager window click on ManageàAdd Roles and Features.
In the Server Roles section select Web Server IIS and click next.
In the Web Server Role (IIS) à Role Services section select ASP.NET 4.5 and WebSocket Protocol.
In the Server Roles section select Management Tools / IIS 6 Management Compatibility.