Skype for Business 2016 client with an older version of Lync / OCS server

Arjan Cornelissen
This week Microsoft released the new version of Office ( and with that came a new version of Skype for Business. I installed this on all of my machines including 1 of my customer, they use an older version of Lync and I got an message that the server version is not compatible with the client. I had this before with the previous versions of Office so I headed over to the blog of my colleague Albert Hoitingh who had a registry key for the previous versions.