The company I work for has Loadrunner and I think about 400 vusers licence. I also know that they have TruClient in the VUGen. But do they need to by additional TruClient licenses or does the current ammount of 400 also include TruClient VUsers to use from the controllers?
From the LoadRunner Help documentation.
"Note: In order to run the various protocols, you must have either a global license or licenses for the desired protocols. For more information, select Configuration > LoadRunner License in the LoadRunner Launcher (Start > Programs > LoadRunner > LoadRunner)."
I would take that to mean you need licenses specifically for the TruClient protocol as well, unless the 400 that you have are global. I'm no Performance Center admin mind you, I just hack out a script or two every once in awhile.