Eclipse worked fine for months, all of a sudden I'm getting error code 13 when trying to start. Searches indicated this was from incompatible "bitness" of java. I've since downloaded a new copy of eclipse, uninstalled all copies of java, reinstalled just x64 & run eclipse x64, uninstalled & tried x86 with 32 bit eclipse & every other possible combination.
Right now if I run eclipse with its own copy of the JDK folder locally I either get error code 13 if I use 32 bit java with 32 bit eclipse, or "Failed to load the JNI Shared library" if I use the 64 bit copy.