

NET Framework 4.5 is required for Lync Server 2013. NET Framework 4.5 The 64-bit edition of Microsoft. For details about installing Windows Identity Foundation, see. To verify that it has already been installed on your computer, go to Control Panel, click Programs and Features, View installed updates, and look under Microsoft Windows. Windows Identity Foundation Lync Server 2013 requires the installation of Windows Identity Foundation in order to support server-to-server authentication scenarios. For details about the specific software requirements for each server, see Additional software requirements for Lync Server 2013 in the Planning documentation. Prerequisite software for servers running Lync Server 2013 The additional software prerequisites for servers running Lync Server 2013 depend on the server role being deployed. Lync Server 2013 requires the installation of the following additional software on servers: Install Other Prerequisite Software on Servers
