Doug Deitterick has put together a rundown on the various scenarios for which you can use LyncServerUpdateInstaller.exe to install Lync server updates:
Just like previous versions of OCS/Lync, there are two methods to update the servers with OCS/Lync cumulative updates. You can use Microsoft Update/WSUS or you can use LyncServerUpdateInstaller.exe. Both ways accomplish the same thing, but what I find is that a lot of customers who use the Microsoft Update/WSUS method forget to then go back and apply any database updates that are needed. This blog post focuses on the LyncServerUpdateInstaller.exe method, as I prefer using it over the Microsoft Update/WSUS method.
The full article’s over at Doug’s blog.
Posted by Tristan Kington, MSPFE Editor with sore feet