How to Change Lync License from Evaluation to Licensed

I have followed Microsoft KB to activate Lync , http://technet.microsoft.com/en-us/library/gg521005.aspx but no luck ..Should I enter the license key somewhere ? I mean when I tried those commands in Lync management shell I had not been asked to enter the license key. I need to enter license key before it expires and I would like to keep the configuration without a complete new installation.

I have gone through Microsoft KB http://technet.microsoft.com/en-us/library/gg521005.aspx

when I enter  msiexec.exe /fvomus server.msi EVALTOFULL=1 /qb  I get following error

Solution 

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 You were trying to run the command for EVALTOFULL, but the product is still in Evaluation Version.

I would request you to run the same command (in my first email) by navigating the Lync Shell to the location “\Setup\amd64\setup” present inside the media downloaded from Volume Licensing website.

Lync 2013 Standard and Enterprises Backup Script

Hi Guys,

Using this script you can backup following things in Lync 2013 Enterprises Edition , single zipped for disaster recovery 


> Microsoft Lync Server 2010 topology, policies, and configuration settings
> Exports an Enterprise Voice Enhanced 9-1-1 (E9-1-1) configuration
> Exports RGS configuration 
> Export User information 
> Backing up some of the vital policies and settings
> Backing up SQL Database
> Export Persistant Chat
> Backing up CERTIFICATE

for Lync 2013 Standard and 2010 edition we have to different script  



This script can be run without any input or change, but feel free to change the paths. Also you can setup a task scheduler to perform this automatically.

Script can be find https://www.dropbox.com/sh/dsr7rzxj2sk4z8r/2nmF1JQXET  and save file as .ps1