I installed zenon V6.50 and V6.51 in my PC and I tested by creating RT files to V6.51 first, then Rt files for V6.50 with different wsb files respectively. Then, I opened V6.51 again and try to open the wsp6 file of the RT folder that I first created. But it always open the recent RT files (V6.50) that I created. Is there any solution on how to seperate the 2 files and I can choose to open only the RT file version that I need?

Another problem is that the "Senon Startup Tool" is missing during installation. How to solve this problem? Where to get the seperate software for this?