Here's a response from the developer of a program called RT4.
It turns out that the latest version of the Java Runtime Environment (JRE), 1.8.0_60, is not compatible with InstallAnywhere 2012 from Flexera (used to build the RT4 installer). However, the Java VM bundled with the RT4 installer (in case someone doesn’t have Java) is version 1.7 and works fine.
I deleted Java from my workstation and ran the installer for RT4, and it worked fine. If your InstallAnywhere program includes a version of Java, it should work (otherwise why would they include it); if it doesn't, try deleting 1.8 and reinstalling 1.7. IMHO, this is something that Flexera should have noticed and fixed.