(en) Bill Smithers,I Could Not Find Windows CardSpace(19 februari 2021).Geraadpleegd op 2 mei 2023.“Microsoft originally included Windows CardSpace with the .NET Framework 3.0, which was designed to run on Windows XP, Windows Vista and Windows Server 2003. It is installed by default on Windows Vista and Windows 7, and can be downloaded for Windows XP and Windows Server 2003 for free. Microsoft has since discontinued Windows CardSpace, opting to put time and resources into developing a replacement call U-Prove.”
