If you try to install the Lync 2013 Debugging Tools on your PC you get some nonsense error about needing to have Visual C++ or something installed blah blah blah. So here is how to get to the new Snooper tool without mucking about with installing any of that.
1. Download the Lync 2013 Debugging Tools.
2. Open a command prompt and navigate to the folder where you put the LyncDebugTools.msi file you just downloaded.
3. Run the following command: msiexec /a LyncDebugTools.msi /qb TARGETDIR=C:TempLyncDebugTools
4. Open Windows Explorer and navigate to the folder listed in the command ad the end of step 3.
In my case: C:TempLyncDebugToolsBuiltInMicrosoft Lync Server 2013Debugging Tools
There you go! I’m sure there is some blanket statement about how this is not officially supported with Lync 2010 etc. But it appears faster, has had a cosmetic update and includes the neat Ladder view (aka “Flow Diagram”) in the View menu.
A little more info on the updates can be found here.