Re my comment - I was just confirming what you saw. And in my case the "remaining" message looks to be inaccurate.
If you are talking of the various synths available in Syntronik, then the Syntronik software download (under the [Software] tab in the IKPM) DOES NOT expire. The synth sounds libraries for Syntronik (under the [Sounds] tab in the IKPM) DO expire.
Looking at your screenshot, I think that those names that start with _. are not Syntronik instruments; rather they are some resource files that OSX can use. If you look at them on disk, they are probably very small. Here, on Windows 7, I just delete them. Check with Technical Support, to be sure.
The web pages for the Syntronik synths show how many instruments there are in each (90 for Blau, 155 for 99). You could cross-check those against the .st3i on disk or the instruments listed in the ST3 Browser.