If your organization requires a "Lync-style" interface, you have two primary official paths:

In 2015, Microsoft performed a massive identity shift. Lync 2013 was updated and renamed to . By 2017, the software most people were using was technically Skype for Business 2016 , which is why the "2017" version is often a misnomer for the latest patches released that year. 2. Why x64 and Russian (RUS)?

The Ghost of Lync: Navigating the 2017 Transition to Skype for Business