What could have changed a few weeks ago? Can you re-run your old PinPoint installer and see if repair gets you back where you can see the license applet?

The changes for the January MS problem cannot affect PinPoint anyway. It is an "in process" (DLL) server and is not subject to the cross-process and or DCOM stuff at all. It is impossible that the January update thing could have affected PinPoint itself. Also, the changes in DCOMCNFG are harmless even though Microsoft fixed the issue back in early March.