You already discovered an older post which contains instructions (more instructions are available if you visit the thread linked therein or if you use the forum search):
I don’t know why you try that – AFAIK there were never instructions posted to do so. The content of your RoonOnNas/bin folder should look similar to mine:
Note: No need to rename anything! If you have to, then you’re doing something wrong. In this case please post a detailed description of what you’re doing (step-by-step).