One of my clients requires me to use Lync for communicating within the company, but won’t provide me with a copy of it unless I install their entire operating image. This is a problem for various reasons which I don’t want to get into, but the result is that everything works fine except for not being able to get a copy of Lync to use with their system. As a result, it’s necessary to use the evaluation version of the Lync client (http://technet.microsoft.com/en-us/lync/gg236589.aspx). This works great until the evaluation expires in 180 days. How to work around that? Well, if I was a little less pressed for time I could check the registry entries added during installation and see which is responsible for setting the evaluation period. However, at the moment I’ve got better things to do, and a little bit of searching the lazyweb turned up this thread:
The last comment says to uninstall Lync 2010, re-install Office Communicator 2007 (also the trial version), uninstall that, then reinstall Lync 2010. Voila, your trial period is reset!