Unfortunately the platform I target for widest reach (4.2.1) doesn't have a mechanism for me to reliably tell what OS someone is on. (That wasn't added until 4.3). So I don't really know what OSes people are on until I ask
At any rate, regardless of OS, PodTrapper should never fail to start, it should at the very least report what functionality is missing/broken and continue along as best as possible, so I'm definitely interested to see where the issue is for you.
-Marcus