Finding a list of users who don't have an exchange license

Thanks for your reply and link.   

I'm not even remotely a powershell guru, so I'm not familiar with how adding extra modules in will affect things long term.  If I download and install that module, are there any risks to that?

Part of my problem is that I got a new computer recently, and I'm having a heck of a time figuring out which modules I had loaded on my last computer.  Some of the commands I used to run no longer work, and I can't figure out what they were from.  I'm a little nervous now about loading any other modules that later I'm not going to remember I loaded.

Thanks again for your help.