Windows Identity Foundation

Windows Identity Foundation (WIF) is a Microsoft software framework for building identity-aware applications. It provides APIs for building ASP.NET or WCF based security token services as well as tools for building claims-aware and federation capable applications.

Windows Identity Foundation is supported on IIS 6/Windows Server 2003, IIS 7/Windows Vista, Windows Server 2008 and Windows 7. Version 1.0 shipped as a standalone product, but the product is now included as a part of Microsoft .NET Framework v4.5.[1]

Major features

WIF has the following major features:[2]


The Microsoft documentation can mislead readers into thinking that WIF allows only the following types of claims-aware applications to be constructed: ASP.NET web applications and WCF service applications. This is not the case. Claims-aware Windows client applications can be built as well as any other type of custom claims-aware application. The misunderstanding arises from the fact that the security token service (STS) built using WIF can only be an ASP.NET application or WCF service application.


  1. "Windows Identity Foundation 4.5 Overview". Microsoft Corporation. Retrieved January 24, 2012.
  2. Microsoft Corporation. "What is Windows Identity Foundation?". Microsoft Corporation. Retrieved August 2, 2011.

External links

See also

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