Internet Information Services (IIS, formerly Internet Information Server) is an extensible web server created by Microsoft
IIS version
Windows OS
Remarks/Features
IIS 1.0
Windows NT 3.51;
1996
IIS 2.0
Windows NT 4.0
1996
IIS 3.0
Service Pack 2 of Windows NT 4.0
1996; introduced Active Server Pages (ASP)
IIS 4.0
"Option Pack" for Windows NT 4.0
1997
IIS 5.0
Windows 2000
2000; support for the WebDAV protocol, enhancements to ASP
IIS 5.1
Windows XP Professional
2002
IIS 6.0
Windows Server 2003
2003
IIS 7.0
Windows Server 2008, Windows Vista
2008
IIS 7.5
Windows 7, Windows Server 2008 R2
2009
IIS 8.0
Windows Server 2012 and Windows 8
SNI (binding SSL to hostnames rather than IP addresses), Application Initialization, centralized SSL certificate support
IIS 8.5
Windows Server 2012 R2 and Windows 8.1
Idle worker-Process page-out, Dynamic Site Activation, Enhanced Logging, ETW logging, and Automatic Certificate Rebind
IIS 10
Windows Server 2016 and Windows 10
support for HTTP/2
OWIN (Open Web Interface for .NET) is an interface specification. It decouples a web applications from IIS. OWIN/Katana (set of components by Microsoft built using OWIN specifications) reduces your server running costs since your web servers do not need to run on IIS (Windows) anymore
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