Unsupported ESXi License that works

Up on the roadmap to be complete today is an MCS to ESXi migration for a clients CUCM. While it isn't a UCS box which makes the entire design not supported, their ESXi is not running a supported version either. They are currently running on 5.5 which, by all intents and purposes, works great. We all know we can load up a ESXi box and load CUCM on it with no issues. Heck, you can load it up on a box with an intel processor then migrate to AMD and it works if you really wanted to but PCD, the migration software that does all the magic in the background specifies certain license sets of ESXi due to certain issues pertaining to access and such. It turns out VMWare Essentials Plus 5.5 works fine despite not being listed in the supported sets of ESXi licensing on Cisco's site. I thought this important as some may need to migrate in the situation that I am in and not know if the ESXi is supported. One sure fire way of finding out is trying to add the ESXi host to the inventory in PCD. It either works or it doesn't. The good thing is, from here on out, I know an extra piece of information that can help out in the future and I wanted to share that with everyone here as well. The other option is to get a key or get a trial license and temporarily apply that to ESXi then bounce back when you are done since PCD is just a temporary situation to begin with.